US Bridges

County Road 46 over Unnamed Drainage Ditch

Good

Logan County, Colorado · 0.3 MI E of CO RD 53 · Structure no. LOG46-53.3-269

Built
1998
27 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
91
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 46 over Unnamed Drainage Ditch is a prestressed concrete tee beam carrying County Road 46 over Unnamed Drainage Ditch in Logan County, Colorado. It was built in 1998, so it is 27 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 91 vehicles a day, roughly 19% of them trucks, projected to reach 112 by 2042. The structure is 38 ft (11.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 46
CrossesUnnamed Drainage Ditch
Location0.3 MI E of CO RD 53
RouteCounty Highway 0
Coordinates40.76071, -103.07048
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating43.1 US tons
Inventory rating25.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span33 ft (10.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2022)
Projected traffic112 by 2042
Trucks19%
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 46 over Unnamed Drainage Ditch built?

It was built in 1998, making it 27 years old in 2025.

What condition is County Road 46 over Unnamed Drainage Ditch 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 December 2023.

How much traffic does County Road 46 over Unnamed Drainage Ditch carry?

About 91 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is County Road 46 over Unnamed Drainage Ditch?

The structure is 38 ft (11.5 m) long with a longest span of 33 ft (10.1 m) and a deck 34 ft wide.

Who owns County Road 46 over Unnamed Drainage Ditch?

It is owned by the County Highway Agency.