US Bridges

County Road 40 over N. Sterling Inlet Canal

Fair

Logan County, Colorado · 50 Ft E of CO RD 37 · Structure no. LOG40-37-110-A

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
93
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 40 over N. Sterling Inlet Canal is a prestressed concrete stringer/multi-beam or girder carrying County Road 40 over N. Sterling Inlet Canal in Logan County, Colorado. It was built in 1986, so it is 39 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 93 vehicles a day, roughly 40% of them trucks, projected to reach 115 by 2042. The structure is 92 ft (28 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 40
CrossesN. Sterling Inlet Canal
Location50 Ft E of CO RD 37
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.71672, -103.22836
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
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 alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span86 ft (26.2 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2023)
Projected traffic115 by 2042
Trucks40%
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 40 over N. Sterling Inlet Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 40 over N. Sterling Inlet Canal 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 40 over N. Sterling Inlet Canal carry?

About 93 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is County Road 40 over N. Sterling Inlet Canal?

The structure is 92 ft (28 m) long with a longest span of 86 ft (26.2 m) and a deck 34 ft wide.

Who owns County Road 40 over N. Sterling Inlet Canal?

It is owned by the County Highway Agency.