US Bridges

County Road 57 over Prewitt Inlet Canal

Fair

Washington County, Colorado · 0.35 Mi. E. of Co. Rd. N · Structure no. WTN57-N.35-A

Built
1994
31 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
29
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 57 over Prewitt Inlet Canal is a steel stringer/multi-beam or girder carrying County Road 57 over Prewitt Inlet Canal in Washington County, Colorado. It was built in 1994, so it is 31 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 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 29 vehicles a day, roughly 19% of them trucks, projected to reach 36 by 2042. The structure is 63 ft (19.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 57
CrossesPrewitt Inlet Canal
Location0.35 Mi. E. of Co. Rd. N
RouteCounty Highway 0
CountyWashington County
StateColorado
Coordinates40.39306, -103.45925
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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.9 US tons
Inventory rating40.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span56 ft (17.2 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2023)
Projected traffic36 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 57 over Prewitt Inlet Canal built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Road 57 over Prewitt Inlet Canal 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 57 over Prewitt Inlet Canal carry?

About 29 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is County Road 57 over Prewitt Inlet Canal?

The structure is 63 ft (19.2 m) long with a longest span of 56 ft (17.2 m) and a deck 35 ft wide.

Who owns County Road 57 over Prewitt Inlet Canal?

It is owned by the County Highway Agency.