US Bridges

County Road RR over Jack Creek

Fair

Washington County, Colorado · 1.4 Mi. N. of Co. Rd. 20 · Structure no. WTNRR-21.40-A

Built
1992
33 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
102 ft
2 main spans
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

County Road RR over Jack Creek is a steel continuous stringer/multi-beam or girder carrying County Road RR over Jack Creek in Washington County, Colorado. It was built in 1992, so it is 33 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 300 vehicles a day, roughly 45% of them trucks, projected to reach 372 by 2042. The structure is 102 ft (31.1 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road RR
CrossesJack Creek
Location1.4 Mi. N. of Co. Rd. 20
RouteCounty Highway 0
CountyWashington County
StateColorado
Coordinates39.87897, -102.97275
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.8 US tons
Inventory rating17.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span50 ft (15.1 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic372 by 2042
Trucks45%
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 RR over Jack Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road RR over Jack 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 RR over Jack Creek carry?

About 300 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is County Road RR over Jack Creek?

The structure is 102 ft (31.1 m) long with a longest span of 50 ft (15.1 m) and a deck 32 ft wide.

Who owns County Road RR over Jack Creek?

It is owned by the County Highway Agency.