US Bridges

SH 131 Ml over Rock Creek

Fair

Eagle County, Colorado · 20 Miles North of Wolcott · Structure no. E-10-D

Built
1958
67 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
94 ft
3 main spans
Daily traffic
1,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 131 Ml over Rock Creek is a concrete tee beam carrying SH 131 Ml over Rock Creek in Eagle County, Colorado. It was built in 1958, so it is 67 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 6 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 1,000 vehicles a day, roughly 9% of them trucks, projected to reach 1,170 by 2040. The structure is 94 ft (28.5 m) long and 30 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesSH 131 Ml
CrossesRock Creek
Location20 Miles North of Wolcott
RouteState Highway 131B
Coordinates39.91411, -106.72713
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.7 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length94 ft (28.5 m)
Longest span31 ft (9.3 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,170 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 131 Ml over Rock Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is SH 131 Ml over Rock Creek 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 over Rock Creek carry?

About 1,000 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 131 Ml over Rock Creek?

The structure is 94 ft (28.5 m) long with a longest span of 31 ft (9.3 m) and a deck 30 ft wide.

Who owns SH 131 Ml over Rock Creek?

It is owned by the State Highway Agency.