US Bridges

SH 131 Ml/Main Str over Dodge Avenue/Short Stree

Fair

Routt County, Colorado · SH 131/MAIN ST over Dodge · Structure no. C-09-P

Built
1935
90 years old, rebuilt 2006
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
2 main spans
Daily traffic
2,800
2020 count
Owner
State
State Highway Agency

About this bridge

SH 131 Ml/Main Str over Dodge Avenue/Short Stree is a steel stringer/multi-beam or girder carrying SH 131 Ml/Main Str over Dodge Avenue/Short Stree in Routt County, Colorado. It was built in 1935 and reconstructed in 2006, so it is 90 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,800 vehicles a day, roughly 6% of them trucks, projected to reach 3,220 by 2040. The structure is 74 ft (22.5 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSH 131 Ml/Main Str
CrossesDodge Avenue/Short Stree
LocationSH 131/MAIN ST over Dodge
RouteState Highway 131B
CountyRoutt County
StateColorado
Coordinates40.2747, -106.9542
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length74 ft (22.5 m)
Longest span40 ft (12.1 m)
Deck width41 ft (12.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2020)
Projected traffic3,220 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 131 Ml/Main Str over Dodge Avenue/Short Stree built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2006.

What condition is SH 131 Ml/Main Str over Dodge Avenue/Short Stree in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does SH 131 Ml/Main Str over Dodge Avenue/Short Stree carry?

About 2,800 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SH 131 Ml/Main Str over Dodge Avenue/Short Stree?

The structure is 74 ft (22.5 m) long with a longest span of 40 ft (12.1 m) and a deck 41 ft wide.

Who owns SH 131 Ml/Main Str over Dodge Avenue/Short Stree?

It is owned by the State Highway Agency.