US Bridges

County Road 7.4 over Spring Creek

Fair

Logan County, Colorado · 0.1 MI S of CO RD 38 · Structure no. LOG7.4-36.9-271

Built
1975
50 years old
Condition
Fair
inspected January 2024
Type
Culvert
Steel
Length
52 ft
4 main spans
Daily traffic
21
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 7.4 over Spring Creek is a steel culvert carrying County Road 7.4 over Spring Creek in Logan County, Colorado. It was built in 1975, so it is 50 years old, older 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 5 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 21 vehicles a day, roughly 32% of them trucks, projected to reach 26 by 2042. The structure is 52 ft (15.8 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 7.4
CrossesSpring Creek
Location0.1 MI S of CO RD 38
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.69947, -103.51875
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span10 ft (3 m)
Deck width55 ft (16.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2023)
Projected traffic26 by 2042
Trucks32%
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 7.4 over Spring Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is County Road 7.4 over Spring 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 January 2024.

How much traffic does County Road 7.4 over Spring Creek carry?

About 21 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is County Road 7.4 over Spring Creek?

The structure is 52 ft (15.8 m) long with a longest span of 10 ft (3 m) and a deck 55 ft wide.

Who owns County Road 7.4 over Spring Creek?

It is owned by the County Highway Agency.