US Bridges

FSR 523 over Red Mountain Creek

Good

Mineral County, Colorado · 10.2 MI Ssw of Creede · Structure no. 020901000001032

Built
1981
44 years old, rebuilt 1992
Condition
Good
inspected July 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
78
2002 count
Owner
Federal
U.S. Forest Service

About this bridge

FSR 523 over Red Mountain Creek is a prestressed concrete box beam or girders - multiple carrying FSR 523 over Red Mountain Creek in Mineral County, Colorado. It was built in 1981 and reconstructed in 1992, so it is 44 years old, older 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 78 vehicles a day, projected to reach 20 by 2012. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesFSR 523
CrossesRed Mountain Creek
Location10.2 MI Ssw of Creede
RouteCounty Highway 523
Coordinates37.71879, -107.01364
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span52 ft (15.7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2002)
Projected traffic20 by 2012
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$26,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FSR 523 over Red Mountain Creek built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1992.

What condition is FSR 523 over Red Mountain Creek 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 July 2021.

How much traffic does FSR 523 over Red Mountain Creek carry?

About 78 vehicles per day (2002 count).

How long is FSR 523 over Red Mountain Creek?

The structure is 55 ft (16.8 m) long with a longest span of 52 ft (15.7 m) and a deck 24 ft wide.

Who owns FSR 523 over Red Mountain Creek?

It is owned by the U.S. Forest Service.