US Bridges

County Road 55 over N Sterling Outlet Canal

Fair

Logan County, Colorado · 0.2 MI N of CO RD 58 · Structure no. LOG55-58.2-151A

Built
2014
11 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
23
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 55 over N Sterling Outlet Canal is a prestressed concrete tee beam carrying County Road 55 over N Sterling Outlet Canal in Logan County, Colorado. It was built in 2014, so it is 11 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 23 vehicles a day, roughly 36% of them trucks, projected to reach 29 by 2042. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 55
CrossesN Sterling Outlet Canal
Location0.2 MI N of CO RD 58
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.85441, -103.05723
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span51 ft (15.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2022)
Projected traffic29 by 2042
Trucks36%
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 55 over N Sterling Outlet Canal built?

It was built in 2014, making it 11 years old in 2025.

What condition is County Road 55 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 55 over N Sterling Outlet Canal carry?

About 23 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is County Road 55 over N Sterling Outlet Canal?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.4 m) and a deck 34 ft wide.

Who owns County Road 55 over N Sterling Outlet Canal?

It is owned by the County Highway Agency.