US Bridges

County Road U50 over Surface Creek

Fair

Delta County, Colorado · 1.7 MI W of SH 65 · Structure no. DELU50R-250-31A

Built
1994
31 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
106
2022 count
Owner
County
County Highway Agency

About this bridge

County Road U50 over Surface Creek is a concrete culvert carrying County Road U50 over Surface Creek in Delta County, Colorado. It was built in 1994, so it is 31 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 106 vehicles a day, roughly 2% of them trucks, projected to reach 120 by 2042. The structure is 20 ft (6.1 m) long and 58 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road U50
CrossesSurface Creek
Location1.7 MI W of SH 65
RouteCounty Highway 0
CountyDelta County
StateColorado
Coordinates38.95247, -107.89439
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating81.7 US tons
Inventory rating48.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width58 ft (17.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic106 (2022)
Projected traffic120 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 U50 over Surface Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Road U50 over Surface 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 September 2023.

How much traffic does County Road U50 over Surface Creek carry?

About 106 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road U50 over Surface Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 58 ft wide.

Who owns County Road U50 over Surface Creek?

It is owned by the County Highway Agency.