US Bridges

County Road P over Sand Creek

Fair

Washington County, Colorado · 1.3 Mi. N. of Co. Rd. 21 · Structure no. WTNP-22.30

Built
1957
68 years old, rebuilt 1997
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
23
2023 count
Owner
County
County Highway Agency

About this bridge

County Road P over Sand Creek is a steel stringer/multi-beam or girder carrying County Road P over Sand Creek in Washington County, Colorado. It was built in 1957 and reconstructed in 1997, 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. Its operating status is: open, posting recommended but not legally implemented.

It carries about 23 vehicles a day, roughly 65% of them trucks, projected to reach 29 by 2042. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road P
CrossesSand Creek
Location1.3 Mi. N. of Co. Rd. 21
RouteCounty Highway 0
CountyWashington County
StateColorado
Coordinates39.88936, -103.45933
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.1 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span28 ft (8.6 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2023)
Projected traffic29 by 2042
Trucks65%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 P over Sand Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1997.

What condition is County Road P 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 P over Sand Creek carry?

About 23 vehicles per day (2023 count), of which roughly 65% are trucks.

How long is County Road P over Sand Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.6 m) and a deck 25 ft wide.

Who owns County Road P over Sand Creek?

It is owned by the County Highway Agency.