US Bridges

NFSR 585 over Mineral Creek

Good

San Juan County, Colorado · 2.8 MI NW of Silverton · Structure no. 021308000017066

Built
2012
13 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
50
2012 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 585 over Mineral Creek is a steel stringer/multi-beam or girder carrying NFSR 585 over Mineral Creek in San Juan County, Colorado. It was built in 2012, so it is 13 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 73 ft (22.3 m) long and 22 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNFSR 585
CrossesMineral Creek
Location2.8 MI NW of Silverton
RouteFederal Lands Road 585
Coordinates37.8204, -107.71955
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.3 m)
Longest span70 ft (21.4 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2012)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 585 over Mineral Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is NFSR 585 over Mineral 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 NFSR 585 over Mineral Creek carry?

About 50 vehicles per day (2012 count).

How long is NFSR 585 over Mineral Creek?

The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.4 m) and a deck 22 ft wide.

Who owns NFSR 585 over Mineral Creek?

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