US Bridges

County Road 42 over W Bijou Creek

FairPosted for load

Arapahoe County, Colorado · 3.2 MI East of CR 157 · Structure no. ARA 42-42.2

Built
1964
61 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
150 ft
5 main spans
Daily traffic
96
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 42 over W Bijou Creek is a prestressed concrete tee beam carrying County Road 42 over W Bijou Creek in Arapahoe County, Colorado. It was built in 1964, so it is 61 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: posted for load restriction.

It carries about 96 vehicles a day, projected to reach 117 by 2041. The structure is 150 ft (45.7 m) long and 21 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesCounty Road 42
CrossesW Bijou Creek
Location3.2 MI East of CR 157
RouteCounty Highway 0
Coordinates39.59405, -104.26573
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans5
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span29 ft (8.9 m)
Deck width21 ft (6.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2021)
Projected traffic117 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 42 over W Bijou Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is County Road 42 over W Bijou 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 November 2023.

How much traffic does County Road 42 over W Bijou Creek carry?

About 96 vehicles per day (2021 count).

How long is County Road 42 over W Bijou Creek?

The structure is 150 ft (45.7 m) long with a longest span of 29 ft (8.9 m) and a deck 21 ft wide.

Who owns County Road 42 over W Bijou Creek?

It is owned by the County Highway Agency.