US Bridges

County Road 6 over N. Sterling Inlet Canal

Fair

Logan County, Colorado · 0.4 M. E. of Co. Rd. 17.7 · Structure no. LOG6-19.1-6-A

Built
1989
36 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
134
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 6 over N. Sterling Inlet Canal is a prestressed concrete tee beam carrying County Road 6 over N. Sterling Inlet Canal in Logan County, Colorado. It was built in 1989, so it is 36 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 134 vehicles a day, roughly 45% of them trucks, projected to reach 165 by 2042. The structure is 37 ft (11.3 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 6
CrossesN. Sterling Inlet Canal
Location0.4 M. E. of Co. Rd. 17.7
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.46464, -103.40411
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span32 ft (9.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134 (2023)
Projected traffic165 by 2042
Trucks45%
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 6 over N. Sterling Inlet Canal built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road 6 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 6 over N. Sterling Inlet Canal carry?

About 134 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is County Road 6 over N. Sterling Inlet Canal?

The structure is 37 ft (11.3 m) long with a longest span of 32 ft (9.7 m) and a deck 34 ft wide.

Who owns County Road 6 over N. Sterling Inlet Canal?

It is owned by the County Highway Agency.