US Bridges

County Road 52 over Harmony No. 2 Canal

FairPosted for load

Logan County, Colorado · 0.4 MI E of CO RD 65.7 · Structure no. LOG52-67.0-150

Built
1920
105 years old
Condition
Fair
inspected December 2023
Type
Girder and Floorbeam System
Steel
Length
35 ft
1 main span
Daily traffic
2
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 52 over Harmony No. 2 Canal is a steel girder and floorbeam system carrying County Road 52 over Harmony No. 2 Canal in Logan County, Colorado. It was built in 1920, so it is 105 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2 vehicles a day, projected to reach 2 by 2042. The structure is 35 ft (10.6 m) long and 19 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty Road 52
CrossesHarmony No. 2 Canal
Location0.4 MI E of CO RD 65.7
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.80826, -102.94008
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating18.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span31 ft (9.4 m)
Deck width19 ft (5.7 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2023)
Projected traffic2 by 2042
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$152,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 52 over Harmony No. 2 Canal built?

It was built in 1920, making it 105 years old in 2025.

What condition is County Road 52 over Harmony No. 2 Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does County Road 52 over Harmony No. 2 Canal carry?

About 2 vehicles per day (2023 count).

How long is County Road 52 over Harmony No. 2 Canal?

The structure is 35 ft (10.6 m) long with a longest span of 31 ft (9.4 m) and a deck 19 ft wide.

Who owns County Road 52 over Harmony No. 2 Canal?

It is owned by the County Highway Agency.