US Bridges

US 50 + SH 789 NB over Colorado River

Good

Mesa County, Colorado · Grand Junction MP 32.42 · Structure no. H-02-DZ

Built
1989
36 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
705 ft
8 main spans
Daily traffic
13,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 + SH 789 NB over Colorado River is a steel continuous stringer/multi-beam or girder carrying US 50 + SH 789 NB over Colorado River in Mesa County, Colorado. It was built in 1989, so it is 36 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,500 vehicles a day, roughly 4% of them trucks, projected to reach 14,850 by 2040. The structure is 705 ft (215 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 + SH 789 NB
CrossesColorado River
LocationGrand Junction MP 32.42
RouteU.S. Route 50A
Coordinates39.05551, -108.56498
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating100.9 US tons
Inventory rating60.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length705 ft (215 m)
Longest span98 ft (29.9 m)
Deck width47 ft (14.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2020)
Projected traffic14,850 by 2040
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US 50 + SH 789 NB over Colorado River built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 50 + SH 789 NB over Colorado River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does US 50 + SH 789 NB over Colorado River carry?

About 13,500 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is US 50 + SH 789 NB over Colorado River?

The structure is 705 ft (215 m) long with a longest span of 98 ft (29.9 m) and a deck 47 ft wide.

Who owns US 50 + SH 789 NB over Colorado River?

It is owned by the State Highway Agency.