US Bridges

County Road 7 over Amity Canal

Good

Prowers County, Colorado · 2.3 MI NW of Lamar · Structure no. PR7-6-32.5-23A

Built
1997
28 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
1,426
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 7 over Amity Canal is a steel stringer/multi-beam or girder carrying County Road 7 over Amity Canal in Prowers County, Colorado. It was built in 1997, so it is 28 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 1,426 vehicles a day, roughly 2% of them trucks, projected to reach 1,697 by 2042. The structure is 60 ft (18.3 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 7
CrossesAmity Canal
Location2.3 MI NW of Lamar
RouteCounty Highway 0
CountyProwers County
StateColorado
Coordinates38.11958, -102.63161
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span55 ft (16.7 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,426 (2022)
Projected traffic1,697 by 2042
Trucks2%
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 7 over Amity Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road 7 over Amity 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 April 2023.

How much traffic does County Road 7 over Amity Canal carry?

About 1,426 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 7 over Amity Canal?

The structure is 60 ft (18.3 m) long with a longest span of 55 ft (16.7 m) and a deck 34 ft wide.

Who owns County Road 7 over Amity Canal?

It is owned by the County Highway Agency.