Title Date Size Description
Y2 St Vrain Hydraulics TSDN (no models) 01/18/2019 299.42 MB

The Hydraulics deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data and models. Due to file size, the stream-specific data and models are not posted online, but are available upon request. This TSDN was approved by FEMA on 1/18/19; therefore, these data are available for public use. Please note that the floodplains included in this deliverable have not been fully processed/refined, which will occur during the floodplain mapping stage. The attached zip folder is ~290 MB

Y2 St Vrain Hydraulic Models 03/04/2021 57.75 MB

The attached zip folder has Year 2 hydraulic models for Fourmile Canyon Creek, Fourmile Creek, Geer Canyon, Gold Run, James Creek, Left Hand Creek, and North St. Vrain Creek. These models accompany the hydraulics TSDN. The download is ~55 MB.

Y2 South Platte Hydraulics TSDN (no models) 11/12/2018 447 MB

The Hydraulics deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data and models. Due to file size, the stream-specific data and models are not posted online, but are available upon request. This TSDN was approved by FEMA on 10/15/18; therefore, these data are available for public use. Please note that the floodplains included in this deliverable have not been fully processed/refined, which will occur during the floodplain mapping stage. The attached zip folder is ~450 MB

Y2 South Platte Hydraulic Models 03/04/2021 94.65 MB

The attached zip folder has the CHAMP Year 2 hydraulic models for the South Platte River from Weld County to the Colorado-Nebraska state line. These models accompany the hydraulics TSDN. The download is ~90 MB.

Y2 Big Thompson Hydraulic Models 03/04/2021 47.14 MB

The attached zip folder has Year 2 hydraulic models for the Big Thompson River, Black Canyon Creek, Cedar Creek, Dark Gulch, Dickson Gulch, Dry Creek, Dry Gulch, Fall River, Fish Creek, Fox Creek Long Gulch, Noel's Draw, Quillan Gulch, and West Creek. These models accompany the hydraulics TSDN. The download is ~45 MB.

Y2 Big Thompson HUC-8 Hydraulics (no models) 11/12/2018 338.74 MB

The Hydraulics deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data and models. Due to file size, the stream-specific data and models are not posted online, but are available upon request. This TSDN was approved by FEMA on 9/4/18; therefore, these data are available for public use. Please note that the floodplains included in this deliverable have not been fully processed/refined, which will occur during the floodplain mapping stage. The attached zip folder is ~350 MB

Y2 Big Thompson 2D Hydraulic Models (Estes Park and Loveland) 03/04/2021 0 KB

Due to the large file size of the 2D models, they are not available on the website. Model files can be obtained by contacting the community.

Y1 St. Vrain Hydraulic Models 03/04/2021 107.18 MB

The attached zip folder has Year 1 hydraulic models for Boulder Creek, Beaver Creek, Cabin Creek, Coal Creek, Dry Creek No. 2 & 3, Fourmile Canyon Creek, Middle Boulder Creek, Middle St. Vrain Creek, North Boulder Creek, North St. Vrain Creek, Rock Creek, South Boulder Creek, South Platte River, South St. Vrain Creek, St. Vrain Creek, St. Vrain Creek CLOMR, and Two Mile Canyon Creek. These models accompany the hydraulics TSDN. The download is ~45 MB.

Y1 St. Vrain 2D Models 03/04/2021 0 KB

Due to the large file size of the 2D models, they are not available on the website. Model files can be obtained by contacting the community.

Y1 St Vrain Hydraulics TSDN (no models) 01/12/2018 709.99 MB

The Hydraulics deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data and models. Due to file size, the stream-specific data and models are not posted online, but are available upon request. This TSDN was approved by FEMA on 1/12/18; therefore, these data are available for public use. Please note that the floodplains included in this deliverable have not been fully processed/refined, which will occur during the floodplain mapping stage. The attached zip folder is ~690 MB

Y1 Little Thompson Hydraulic Models 12/18/2017 1.18 GB

The attached zip folder has Year 1 hydraulic models for the Little Thompson River, Dry Creek, North Fork Little Thompson, and West Fork Little Thompson River. These models accompany the hydraulics TSDN. The download is ~1,150 MB.

Y1 Big Thompson Hydraulic Models 03/04/2021 137 MB

The attached zip folder has Year 1 hydraulic models for the Big Thompson River, Buckhorn Creek, Dry Creek, Little Thompson River, North Fork Little Thompson River, West Fork Little Thompson River, and Redstone Creek. These models accompany the hydraulics TSDN. The download is ~130 MB.

Y1 Big Thompson HUC-8 Hydraulics TSDN (no models) 12/18/2017 286.03 MB

The Hydraulics deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data and models. Due to file size, the stream-specific data and models are included in two separate zip files: one for the Big Thompson River and tribs (Buckhorn and Redstone) and one for the Little Thompson River and tribs (Dry Creek, West Fork, and North Fork). This TSDN was approved by FEMA on 12/13/17; therefore, these data are available for public use. Please note that the floodplains included in this deliverable have not been fully processed/refined, which will occur during the floodplain mapping stage. The attached zip folder is ~280 MB

Weld County CCO Meeting Presentation 09/11/2020 14.12 MB

Presentation for Weld County CCO Meeting to be held on 9/24/2020

Universal Community Agreement Form 07/16/2015 99 KB

Universal community agreement form to be completed and submitted by each community involved in the project.

Template Flood Hazard Community Notification Letter 09/02/2016 31 KB

A template letter that communities can use to notify residents of changes in flood hazard information.

Survey Memo 06/23/2015 118 KB

Memo to Colorado property owners on property access. Memo will be carried by surveyors to inform landowners about the project.

Study Incorporation- Data Coordination Fact Sheet for CHAMP 03/13/2017 447 KB

Describes various considerations pertaining to incorporating additional studies and data into the CHAMP project.

South Platte Kickoff Presentation 11/10/2016 4.75 MB

Presentation slides given at Greeley and Sterling South Platte Kickoff Meetings

South Platte CHAMP Hydrology TSDN 05/22/2019 52.35 MB

Project narrative describing the South Platte Hydrology TSDN

September 2017 CHAMP Newsletter 09/14/2017 982 KB

September 2017 Newsletter for the CHAMP Project.

Sedgwick_CCO_SignIn 08/22/2019 98 KB

Risk MAP vs CHAMP Fact Sheet 05/24/2016 296 KB

Compares components or characteristics of Risk MAP projects and CHAMP

Regulatory Appeals Process (Spanish) 03/29/2021 311 KB

Document outlining the preliminary products appeal process

Regulatory Appeals Process 03/29/2021 300 KB

Document outlining the preliminary products appeal process

Q3 Meeting Minutes 06/08/2016 181 KB

Notes from the 3rd Quarterly Update meeting

Public Meeting SOP 02/07/2018 321 KB

A standard operating procedure created to provide guidance and processes on typical public meeting for CHAMP and other Colorado Mapping Efforts

Public Fact Sheet for CHAMP 08/31/2017 556 KB

Provides information on CHAMP that the public may be interested in and addresses common questions about flood studies.

Proposed Hydrology Methods Map & Decision Tree 03/22/2016 1.75 MB

Annotated map of proposed hydrology methods for the study streams and a decision tree

Project Schedule and Study Incorporation Flow Chart 04/13/2016 1.87 MB

Incorporation of Ongoing Studies Decision Flowchart and a figure displaying the Hydraulic Analysis Status & Timing for Regulatory Updates

Morgan_CCO_SignIn 08/22/2019 61 KB

May 2017 CHAMP Newsletter 05/17/2017 960 KB

May 2017 Newsletter for the CHAMP Project.

Master St. Vrain Basin Map 09/20/2016 462 KB

Basin specific map for the St. Vrain basin.

Master Project Map 09/20/2016 1.51 MB

Map of the stream segments and project area.

Master Little Thompson Basin Map 09/20/2016 359 KB

Basin specific map for the Little Thompson basin.

Master Boulder Coal Creek Basin Map 09/20/2016 429 KB

Basin specific map for the Boulder Coal Creek basin.

Master Big Thompson Basin Map 09/20/2016 440 KB

Basin specific map for the Big Thompson basin.

July 2016 CHAMP Newsletter 07/22/2016 1.86 MB

3rd Quarterly CHAMP Newsletter

Hydrology Exhibit - St Vrain HUC-8 02/04/2016 7.5 MB

Presents proposed 1% annual chance flows by study source and compares to effective flows from current FIS reports. Also shows gage locations.

Homeowner Handout (Spanish) 03/29/2021 1.43 MB

Handout for homeowners explaining implications of flood risk changes

Homeowner Handout 03/29/2021 1.12 MB

Handout for homeowners explaining implications of flood risk changes

Floodplain Managers Guide to 2D Floodways 03/16/2020 4.47 MB

Training material on various aspects of 2D floodways.

Feedback Questionnaire 02/04/2016 358 KB

We value your input!

Fact Sheet on Flood Risk (Spanish) 03/29/2021 370 KB

Answers frequently asked questions and provides resources for additional information.

Fact Sheet on Flood Risk 03/29/2021 669 KB

Answers frequently asked questions and provides resources for additional information.

Estes Park Flood Risk Review Sign-In 08/28/2017 82 KB

Sign-In sheet for Estes Park Flood Risk Review meeting held 8/23/2017

December 2016 CHAMP Newsletter 12/08/2016 436 KB

December 2016 Newsletter for the CHAMP Project.

December 2015 CHAMP Newsletter 12/22/2015 667 KB

December 2015 Newsletter for the CHAMP Project.

Community Public Meeting Template 07/20/2020 5.8 MB

This is a Powerpoint Presentation template for Colorado Risk MAP COMMUNITY FIRM and FIS Update public meetings. It's designed as a template and has areas to insert community/county specific information.

Community Outreach Expectations and Timing 08/16/2018 320 KB

This memo documents the role of local jurisdictions in regards to outreach for Risk MAP projects. It includes a timeline of a typical flood risk analysis project, outreach milestones, and options/ideas to accomplish outreach.

Colorado Water Plan Implementation Fact Sheet 09/01/2017 1.69 MB

Colorado Water Plan (CWP) Implementation Fact Sheet, September 2017.

Colorado Hazard Mapping Program Phase I Flyer 08/07/2015 353 KB

Informational flyer on Phase I of the Colorado Hazard Mapping Program. Flyer can be used for public information.

CHAMP Y2 Survey TSDN (SV, BT, Platte) 11/28/2017 1 GB

The attached zip file contains the full TSDN for CHAMP Year 2 survey except for photos due to file size, which can be made available upon request. This includes as-builts, correspondence, a narrative, sketches, spatial files, supplemental data, and a spreadsheet of the survey data. Survey data are included for all detailed CHAMP Year 2 streams including those in the St. Vrain Watershed, Big Thompson Watershed, and along the South Platte River. The entire download is ~977 MB.

CHAMP Y2 Hydro TSDN - Estes & South Platte 03/15/2021 80.73 MB

This compressed zip folder contains a pdf of the project narrative describing the CHAMP Hydrology TSDN for the Estes Valley Watershed and along the South Platte River, as well as correspondence documentation, spatial files, and various spreadsheets containing supplemental data. The download is ~80 MB.

CHAMP Y1 Survey TSDN - St Vrain 08/22/2016 4.26 MB

This compressed zip folder contains a pdf of the project narrative describing the CHAMP Survey TSDN for the St Vrain Watershed, as well as spatial files and a spreadsheet of the survey data.

CHAMP Y1 Survey TSDN - Big Thompson 08/22/2016 4.37 MB

This compressed zip folder contains a pdf of the project narrative describing the CHAMP Survey TSDN for the Big Thompson Watershed, as well as spatial files and a spreadsheet of the survey data.

CHAMP Y1 Hydro TSDN - St Vrain 03/12/2021 42.62 MB

This compressed zip folder contains a pdf of the project narrative describing the CHAMP Hydrology TSDN for the St. Vrain Watershed, as well as correspondence documentation, spatial files, and various spreadsheets containing supplemental data. Please email coloradohazardmapping@aecom.com to obtain additional files, such as the models and simulations.

CHAMP Y1 Hydro TSDN - Big Thompson 03/12/2021 33.46 MB

This compressed zip folder contains a pdf of the project narrative describing the CHAMP Hydrology TSDN for the Big Thompson Watershed, as well as correspondence documentation, spatial files, and various spreadsheets containing supplemental data. Please email coloradohazardmapping@aecom.com to obtain additional files, such as the models and simulations.

CHAMP South Platte HEC-RAS Models 07/16/2018 94.66 MB

A zip folder containing all of the HEC-RAS models along the South Platte

CHAMP Flood Risk Review Meeting Figure 09/22/2016 1.53 MB

Shows extents of streams and meeting times for the Flood Risk Review Meetings.

CHAMP and CLP Comparison Map 08/15/2017 2.08 MB

Map that differentiates between the CHAMP and Cache La Poudre projects in Larimer and Weld Counties.

Boulder CCO Sign In 11/26/2019 114 KB

April 2016 CHAMP Newsletter 04/08/2016 694 KB

2nd Quarterly CHAMP Newsletter

Approved South Platte Floodplain Mapping Submittal 11/28/2018 209.68 MB

The South Platte Floodplain Mapping deliverable (technical support data notebook) contains a project narrative, spatial database (containing FIRM layers), and stream-specific data. Due to file size, depth and WSEL grids are not posted online, but are available upon request. This TSDN was approved by FEMA on 11/28/18; therefore, these data are available for public use. The attached zip folder is ~205 MB

Akron&Otis_CCO_SignIn 08/22/2019 57 KB

2D Floodway Approach Memo 03/15/2018 323 KB

This memo documents how our CHAMP team calculates 2-Dimensional (2D) Floodways for Use on Regulatory Flood Insurance Rate Maps (FIRMs) and Flood Insurance Studies (FIS)

2D Floodplains and Floodways for Floodplain Managers 10/25/2018 4.5 MB

This document reviews why 2D models should be selected for flood studies, how regulatory products (FIRM and FIS) are differerent from traditional modeling, how to use data associated with a 2D model, and any differences when managing these results.

2019 November Newsletter 11/27/2019 675 KB

2019 March Newsletter 03/14/2019 1.05 MB

Newsletter documenting updates to CHAMP data, PMRs, available topo, and other related topics.

2019 August Newsletter 08/12/2019 931 KB

2018 February Newsletter 02/13/2018 1.04 MB

Our 7th newsletter