US Bridges

Winding Road 788 over Mineral Creek

Fair

Hinsdale County, Colorado · 43 Mi. S.W. Gunnison Co. · Structure no. 020407000001017

Built
1957
68 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
1 main span
Daily traffic
47
2008 count
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road 788 over Mineral Creek is a wood or timber stringer/multi-beam or girder carrying Winding Road 788 over Mineral Creek in Hinsdale County, Colorado. It was built in 1957, so it is 68 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 5 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 47 vehicles a day, projected to reach 70 by 2045. The structure is 27 ft (8.1 m) long and 16 ft wide. If it were closed, the detour would be 63.4 mi (102 km).

Location

Open in Google Maps
CarriesWinding Road 788
CrossesMineral Creek
Location43 Mi. S.W. Gunnison Co.
RouteFederal Lands Road 7788.
CountyHinsdale County
StateColorado
Coordinates38.06546, -107.06435
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length27 ft (8.1 m)
Longest span25 ft (7.6 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2008)
Projected traffic70 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed63.4 mi (102 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 Winding Road 788 over Mineral Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Winding Road 788 over Mineral Creek 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 August 2024.

How much traffic does Winding Road 788 over Mineral Creek carry?

About 47 vehicles per day (2008 count).

How long is Winding Road 788 over Mineral Creek?

The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.6 m) and a deck 16 ft wide.

Who owns Winding Road 788 over Mineral Creek?

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