US Bridges

SH 340 Ml Wbnd over UP RR and Riverside Pkwy

Fair

Mesa County, Colorado · In G.J. 0.35 MI W of I70B · Structure no. H-02-GD

Built
1974
51 years old, rebuilt 2008
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
377 ft
6 main spans
Daily traffic
9,500
2020 count
Owner
State
State Highway Agency

About this bridge

SH 340 Ml Wbnd over UP RR and Riverside Pkwy is a steel continuous stringer/multi-beam or girder carrying SH 340 Ml Wbnd over UP RR and Riverside Pkwy in Mesa County, Colorado. It was built in 1974 and reconstructed in 2008, so it is 51 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 9,500 vehicles a day, roughly 2% of them trucks, projected to reach 10,640 by 2040. The structure is 377 ft (114.9 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 340 Ml Wbnd
CrossesUP RR and Riverside Pkwy
LocationIn G.J. 0.35 MI W of I70B
RouteState Highway 340A
Coordinates39.06879, -108.57728
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length377 ft (114.9 m)
Longest span85 ft (25.9 m)
Deck width47 ft (14.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2020)
Projected traffic10,640 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 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 340 Ml Wbnd over UP RR and Riverside Pkwy built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2008.

What condition is SH 340 Ml Wbnd over UP RR and Riverside Pkwy 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 December 2024.

How much traffic does SH 340 Ml Wbnd over UP RR and Riverside Pkwy carry?

About 9,500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 340 Ml Wbnd over UP RR and Riverside Pkwy?

The structure is 377 ft (114.9 m) long with a longest span of 85 ft (25.9 m) and a deck 47 ft wide.

Who owns SH 340 Ml Wbnd over UP RR and Riverside Pkwy?

It is owned by the State Highway Agency.