US Bridges

SH 141 Ml over Gunnison River

Fair

Mesa County, Colorado · Whitewater · Structure no. I-03-A

Built
1958
67 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
313 ft
5 main spans
Daily traffic
540
2020 count
Owner
State
State Highway Agency

About this bridge

SH 141 Ml over Gunnison River is a steel continuous stringer/multi-beam or girder carrying SH 141 Ml over Gunnison River in Mesa 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 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 540 vehicles a day, roughly 12% of them trucks, projected to reach 653 by 2040. The structure is 313 ft (95.3 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 141 Ml
CrossesGunnison River
LocationWhitewater
RouteState Highway 141A
Coordinates38.98371, -108.4517
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40.8 US tons
Inventory rating24.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length313 ft (95.3 m)
Longest span67 ft (20.4 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2020)
Projected traffic653 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 141 Ml over Gunnison River built?

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

What condition is SH 141 Ml over Gunnison River 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 October 2024.

How much traffic does SH 141 Ml over Gunnison River carry?

About 540 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is SH 141 Ml over Gunnison River?

The structure is 313 ft (95.3 m) long with a longest span of 67 ft (20.4 m) and a deck 32 ft wide.

Who owns SH 141 Ml over Gunnison River?

It is owned by the State Highway Agency.