US Bridges

Winding Road 611 over Gurley Ditch

Fair

San Miguel County, Colorado · 14.5 Mi. Sse Norwood Co. · Structure no. 020405000001025

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
11
2008 count
Owner
Federal
U.S. Forest Service

About this bridge

Winding Road 611 over Gurley Ditch is a wood or timber slab carrying Winding Road 611 over Gurley Ditch in San Miguel County, Colorado. It was built in 1976, so it is 49 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 11 vehicles a day, projected to reach 16 by 2045. The structure is 24 ft (7.3 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesWinding Road 611
CrossesGurley Ditch
Location14.5 Mi. Sse Norwood Co.
RouteFederal Lands Road 611
CountySan Miguel County
StateColorado
Coordinates37.89024, -108.16916
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2008)
Projected traffic16 by 2045
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Winding Road 611 over Gurley Ditch built?

It was built in 1976, making it 49 years old in 2025.

What condition is Winding Road 611 over Gurley Ditch 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 611 over Gurley Ditch carry?

About 11 vehicles per day (2008 count).

How long is Winding Road 611 over Gurley Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 18 ft wide.

Who owns Winding Road 611 over Gurley Ditch?

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