US Bridges

County Road 24 over Sterling Ditch No 1

Good

Logan County, Colorado · 0.1 Mi. E. of US HWY 6 · Structure no. LOG24-37.9-262

Built
1989
36 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
93
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 24 over Sterling Ditch No 1 is a prestressed concrete tee beam carrying County Road 24 over Sterling Ditch No 1 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 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 93 vehicles a day, roughly 44% of them trucks, projected to reach 115 by 2042. The structure is 23 ft (7.1 m) long and 30 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesCounty Road 24
CrossesSterling Ditch No 1
Location0.1 Mi. E. of US HWY 6
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.59597, -103.22183
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating72.9 US tons
Inventory rating43.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span21 ft (6.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2023)
Projected traffic115 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 24 over Sterling Ditch No 1 built?

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

What condition is County Road 24 over Sterling Ditch No 1 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 24 over Sterling Ditch No 1 carry?

About 93 vehicles per day (2023 count), of which roughly 44% are trucks.

How long is County Road 24 over Sterling Ditch No 1?

The structure is 23 ft (7.1 m) long with a longest span of 21 ft (6.3 m) and a deck 30 ft wide.

Who owns County Road 24 over Sterling Ditch No 1?

It is owned by the County Highway Agency.