US Bridges

County Road 33.5 over N Sterling Inlet Canal

Good

Logan County, Colorado · 0.2 MI S of CO RD 38 · Structure no. LOG33.5-36.871A

Built
1997
28 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
33
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 33.5 over N Sterling Inlet Canal is a prestressed concrete tee beam carrying County Road 33.5 over N Sterling Inlet Canal in Logan County, Colorado. It was built in 1997, so it is 28 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33 vehicles a day, roughly 36% of them trucks, projected to reach 40 by 2042. The structure is 62 ft (18.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 33.5
CrossesN Sterling Inlet Canal
Location0.2 MI S of CO RD 38
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.69819, -103.26802
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length62 ft (18.8 m)
Longest span57 ft (17.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2023)
Projected traffic40 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 33.5 over N Sterling Inlet Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road 33.5 over N Sterling Inlet Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does County Road 33.5 over N Sterling Inlet Canal carry?

About 33 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is County Road 33.5 over N Sterling Inlet Canal?

The structure is 62 ft (18.8 m) long with a longest span of 57 ft (17.3 m) and a deck 35 ft wide.

Who owns County Road 33.5 over N Sterling Inlet Canal?

It is owned by the County Highway Agency.