US Bridges

Fdr 591 over Coal Creek

Good

San Juan County, Colorado · 9.1 MI on Fdr 591 · Structure no. 021301000001142

Built
1937
88 years old, rebuilt 1957
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
37
2003 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 591 over Coal Creek is a steel stringer/multi-beam or girder carrying Fdr 591 over Coal Creek in San Juan County, Colorado. It was built in 1937 and reconstructed in 1957, so it is 88 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 37 vehicles a day, projected to reach 50 by 2013. The structure is 25 ft (7.6 m) long and 16 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

CarriesFdr 591
CrossesCoal Creek
Location9.1 MI on Fdr 591
RouteFederal Lands Road 591
Coordinates37.7062, -107.7613
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2003)
Projected traffic50 by 2013
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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$20,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 591 over Coal Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1957.

What condition is Fdr 591 over Coal 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 2023.

How much traffic does Fdr 591 over Coal Creek carry?

About 37 vehicles per day (2003 count).

How long is Fdr 591 over Coal Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 16 ft wide.

Who owns Fdr 591 over Coal Creek?

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