US Bridges

County Road Qq over Jack Creek

Fair

Washington County, Colorado · 10 MI N of Co. Rd. 20 · Structure no. WTNQQ-20.85-A

Built
1997
28 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
4
2023 count
Owner
County
County Highway Agency

About this bridge

County Road Qq over Jack Creek is a steel stringer/multi-beam or girder carrying County Road Qq over Jack Creek in Washington County, Colorado. It was built in 1997, so it is 28 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 4 vehicles a day, projected to reach 5 by 2042. The structure is 63 ft (19.2 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road Qq
CrossesJack Creek
Location10 MI N of Co. Rd. 20
RouteCounty Highway 0
CountyWashington County
StateColorado
Coordinates39.87394, -102.99161
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating33.3 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 span58 ft (17.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (2023)
Projected traffic5 by 2042
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 Qq over Jack Creek built?

It was built in 1997, making it 28 years old in 2025.

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

About 4 vehicles per day (2023 count).

How long is County Road Qq over Jack Creek?

The structure is 63 ft (19.2 m) long with a longest span of 58 ft (17.7 m) and a deck 34 ft wide.

Who owns County Road Qq over Jack Creek?

It is owned by the County Highway Agency.