US Bridges

County Road 34 over Rattlesnake Creek

Good

Arapahoe County, Colorado · Just East of CR 185 · Structure no. ARA 34-46.2A

Built
1991
34 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
126
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 34 over Rattlesnake Creek is a prestressed concrete tee beam carrying County Road 34 over Rattlesnake Creek in Arapahoe County, Colorado. It was built in 1991, so it is 34 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 126 vehicles a day, projected to reach 154 by 2041. The structure is 75 ft (23 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 34
CrossesRattlesnake Creek
LocationJust East of CR 185
RouteCounty Highway 0
Coordinates39.62324, -104.19182
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating53.6 US tons
Inventory rating32.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length75 ft (23 m)
Longest span70 ft (21.3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic126 (2021)
Projected traffic154 by 2041
Trucks0%
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 34 over Rattlesnake Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is County Road 34 over Rattlesnake Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does County Road 34 over Rattlesnake Creek carry?

About 126 vehicles per day (2021 count).

How long is County Road 34 over Rattlesnake Creek?

The structure is 75 ft (23 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.

Who owns County Road 34 over Rattlesnake Creek?

It is owned by the County Highway Agency.