US Bridges

County Road 30 over Buck Creek

Good

Washington County, Colorado · 50 Ft. E. of Co. Rd. R · Structure no. WTN30-R.00-A

Built
1998
27 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
14
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 30 over Buck Creek is a prestressed concrete tee beam carrying County Road 30 over Buck Creek in Washington County, Colorado. It was built in 1998, so it is 27 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 14 vehicles a day, roughly 23% of them trucks, projected to reach 17 by 2042. The structure is 100 ft (30.5 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 30
CrossesBuck Creek
Location50 Ft. E. of Co. Rd. R
RouteCounty Highway 0
Coordinates40.00161, -103.42217
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span94 ft (28.8 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (2023)
Projected traffic17 by 2042
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 30 over Buck Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is County Road 30 over Buck 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 October 2023.

How much traffic does County Road 30 over Buck Creek carry?

About 14 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is County Road 30 over Buck Creek?

The structure is 100 ft (30.5 m) long with a longest span of 94 ft (28.8 m) and a deck 35 ft wide.

Who owns County Road 30 over Buck Creek?

It is owned by the County Highway Agency.