US Bridges

County Road S over Sand Creek

Fair

Washington County, Colorado · 0.1 Mi. N. of Co. Rd. 18 · Structure no. WTNS-18.10-A

Built
1993
32 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
54
2023 count
Owner
County
County Highway Agency

About this bridge

County Road S over Sand Creek is a steel stringer/multi-beam or girder carrying County Road S over Sand Creek in Washington County, Colorado. It was built in 1993, so it is 32 years old, younger 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 54 vehicles a day, roughly 30% of them trucks, projected to reach 67 by 2042. The structure is 67 ft (20.4 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty Road S
CrossesSand Creek
Location0.1 Mi. N. of Co. Rd. 18
RouteCounty Highway 0
CountyWashington County
StateColorado
Coordinates39.82872, -103.405
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.5 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2023)
Projected traffic67 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road S over Sand Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is County Road S over Sand 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 October 2023.

How much traffic does County Road S over Sand Creek carry?

About 54 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is County Road S over Sand Creek?

The structure is 67 ft (20.4 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns County Road S over Sand Creek?

It is owned by the County Highway Agency.