US Bridges

County Road 34 over Sterling Ditch No 1

Good

Logan County, Colorado · 0.4 MI E of CO RD 41 · Structure no. LOG34-41.4-261

Built
1994
31 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
24 ft
1 main span
Daily traffic
313
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 34 over Sterling Ditch No 1 is a concrete box beam or girders - multiple carrying County Road 34 over Sterling Ditch No 1 in Logan County, Colorado. It was built in 1994, so it is 31 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 313 vehicles a day, roughly 34% of them trucks, projected to reach 385 by 2042. The structure is 24 ft (7.3 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 34
CrossesSterling Ditch No 1
Location0.4 MI E of CO RD 41
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.66961, -103.19466
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 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 rating55 US tons
Inventory rating34.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (2023)
Projected traffic385 by 2042
Trucks34%
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 34 over Sterling Ditch No 1 built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Road 34 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 34 over Sterling Ditch No 1 carry?

About 313 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is County Road 34 over Sterling Ditch No 1?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.3 m) and a deck 34 ft wide.

Who owns County Road 34 over Sterling Ditch No 1?

It is owned by the County Highway Agency.