US Bridges

County Road 57 over Colorado River

Fair

Grand County, Colorado · 200 Ft South of US HWY 40 · Structure no. 049005700.1018A

Built
1990
35 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
59
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 57 over Colorado River is a prestressed concrete box beam or girders - multiple carrying County Road 57 over Colorado River in Grand County, Colorado. It was built in 1990, so it is 35 years old, younger 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 59 vehicles a day, roughly 17% of them trucks, projected to reach 69 by 2042. The structure is 108 ft (32.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 57
CrossesColorado River
Location200 Ft South of US HWY 40
RouteCounty Highway 0
Coordinates40.10831, -106.00274
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating57.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length108 ft (32.8 m)
Longest span103 ft (31.3 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2023)
Projected traffic69 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 57 over Colorado River built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Road 57 over Colorado 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 September 2023.

How much traffic does County Road 57 over Colorado River carry?

About 59 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is County Road 57 over Colorado River?

The structure is 108 ft (32.8 m) long with a longest span of 103 ft (31.3 m) and a deck 28 ft wide.

Who owns County Road 57 over Colorado River?

It is owned by the County Highway Agency.