US Bridges

County Road 79 over N Sterling Outlet Canal

Fair

Logan County, Colorado · 0.3 MI N of CO RD 70 · Structure no. LOG79-70.5-211A

Built
1991
34 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 79 over N Sterling Outlet Canal is a prestressed concrete tee beam carrying County Road 79 over N Sterling Outlet Canal in Logan County, Colorado. It was built in 1991, so it is 34 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 60 vehicles a day, roughly 37% of them trucks, projected to reach 74 by 2042. The structure is 41 ft (12.4 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 79
CrossesN Sterling Outlet Canal
Location0.3 MI N of CO RD 70
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.94063, -102.82632
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 alignment7: Better than present minimum criteria
Operating rating70.3 US tons
Inventory rating43.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.4 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic74 by 2042
Trucks37%
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 79 over N Sterling Outlet Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is County Road 79 over N Sterling Outlet 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 December 2023.

How much traffic does County Road 79 over N Sterling Outlet Canal carry?

About 60 vehicles per day (2022 count), of which roughly 37% are trucks.

How long is County Road 79 over N Sterling Outlet Canal?

The structure is 41 ft (12.4 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns County Road 79 over N Sterling Outlet Canal?

It is owned by the County Highway Agency.