Bridges 101
The Colorado Department of Transportation classifies structures as either major or minor based on their span length.
- Major structures are over 20 feet long
- Minor structures range from 4 to 20 feet
Maintenance and repairs include:
- Scour protection for stability and erosion prevention
- Substructure repairs (abutments and piers)
- Superstructure repairs (girders, decks, curbs)
- Bridge and guard rail work
Inspections:
- Major structures are inspected every 2 years
- Minor structures every 4 years
Maintenance needs identified during inspections are prioritized and scheduled for County crews or contractors.
Private bridges and culverts are not maintained by Larimer County.
Private Crossings, Bridges, and Culverts
Bridge Weight Limits
The Engineering Department is responsible for posting bridges that cannot support legal highway loads.
Bridge Weight Limit Map showing posted bridge locations.
To view this information:
- Structures section select "Bridges"
- Visualization Options: "Bridge Posting"
- Done
Road No. | Bridge No. | Load (Tons) | I | II | III | Feature Intersected |
|---|---|---|---|---|---|---|
17 | LR17-0.0-70 | 25 |
|
|
| North Poudre Canal |
25E | LR25E-1.3-52E | 25 |
|
|
| Pleasant Valley & Lake Canal |
43H | LR43H-0.1-45B |
| 15 | 24 | 24 | Little Thompson River |
45E | LR45E-1.0-S287 |
| 21 | 32 | 33 | Dale Creek Tributary |
54E | LR54E-0.7-27E | 25 |
|
|
| Pleasant Valley & Lake Canal |
56 | LR56-1.1-I25 | 25 |
|
|
| Larimer County Canal |
63E | LR63E-11.8-44H | * | * | * | * | Cache La Poudre River |
80C | LR80C-2.6-59 | 25 |
|
|
| North Fork Cache La Poudre River |
103 | LR103-6.0-S14 |
| 16 | 25 | 26 | Laramie River |
103 | LR103-6.8-S14 |
| 25 | 38 | 40 | Laramie-Poudre Canal |
16 | 16-0.10-21 |
| 22 | 34 | 34 | South Side Ditch |
-- | LRCROWN PTDR1 |
| 10 | 15 | 16 | Cache La Poudre River |
*1-Lane bridge for all vehicles over 27 tons
Total posted bridges on this list = 12
Last update: February, 2018
Larimer County's bridge posting program informs users about the safe load capacity of bridges that cannot support the maximum legal highway loads. The posted signs meet federal standards, and truckers should consult the map above and the posted table when planning routes based on their vehicle and load.
- The restricted bridge list is subject to change. Bridges may be replaced or rehabilitated, resulting in updated load limits, or existing bridges may be restricted due to deterioration or damage.
- Always use the most current version of this information. Larimer County cannot assume liability for users relying on outdated information.
- Weight limit signs at the bridges take precedence over the above table.
- If the 'Gross Load' field lists a value, the bridge is posted for that gross load.
- If 'Truck Type' fields are present, trucks exceeding the gross load may cross if their axle weight does not surpass the posted limits for Type II and Type III vehicles.
Additional information about Colorado legal vehicle dimensions and weight limits.
