US Bridges

County Road 5N over Rio Grande River

Fair

Rio Grande County, Colorado · Near County Road 5W · Structure no. RGDN05-05.00W

Built
1974
51 years old
Condition
Fair
inspected December 2024
Type
Girder and Floorbeam System
Steel
Length
160 ft
2 main spans
Daily traffic
425
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 5N over Rio Grande River is a steel girder and floorbeam system carrying County Road 5N over Rio Grande River in Rio Grande County, Colorado. It was built in 1974, 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 425 vehicles a day, roughly 2% of them trucks, projected to reach 494 by 2042. The structure is 160 ft (48.8 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 5N
CrossesRio Grande River
LocationNear County Road 5W
RouteCounty Highway 0
CountyRio Grande County
StateColorado
Coordinates37.64729, -106.24069
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.9 US tons
Inventory rating25.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length160 ft (48.8 m)
Longest span76 ft (23.3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2022)
Projected traffic494 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 5N over Rio Grande River built?

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

What condition is County Road 5N over Rio Grande 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 December 2024.

How much traffic does County Road 5N over Rio Grande River carry?

About 425 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 5N over Rio Grande River?

The structure is 160 ft (48.8 m) long with a longest span of 76 ft (23.3 m) and a deck 32 ft wide.

Who owns County Road 5N over Rio Grande River?

It is owned by the County Highway Agency.