US Bridges

County Road 85 over Harmony No. 1 Canal

Good

Logan County, Colorado · 1.4 MI N of US HWY 138 · Structure no. LOG85-62.7-225A

Built
2006
19 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 85 over Harmony No. 1 Canal is a prestressed concrete tee beam carrying County Road 85 over Harmony No. 1 Canal in Logan County, Colorado. It was built in 2006, so it is 19 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 25 vehicles a day, roughly 51% of them trucks, projected to reach 31 by 2042. The structure is 40 ft (12.2 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 85
CrossesHarmony No. 1 Canal
Location1.4 MI N of US HWY 138
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.89148, -102.76734
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.3 US tons
Inventory rating37.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span36 ft (11.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic31 by 2042
Trucks51%
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 85 over Harmony No. 1 Canal built?

It was built in 2006, making it 19 years old in 2025.

What condition is County Road 85 over Harmony No. 1 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 December 2023.

How much traffic does County Road 85 over Harmony No. 1 Canal carry?

About 25 vehicles per day (2022 count), of which roughly 51% are trucks.

How long is County Road 85 over Harmony No. 1 Canal?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11.1 m) and a deck 34 ft wide.

Who owns County Road 85 over Harmony No. 1 Canal?

It is owned by the County Highway Agency.