US Bridges

County Road 9 over Highline Canal

Fair

Sedgwick County, Colorado · 0.9 Mi. No. of Co. Rd. 28 · Structure no. SED9-28.9-8A

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 9 over Highline Canal is a steel stringer/multi-beam or girder carrying County Road 9 over Highline Canal in Sedgwick County, Colorado. It was built in 1986, so it is 39 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 11 vehicles a day, roughly 44% of them trucks, projected to reach 13 by 2042. The structure is 51 ft (15.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 9
CrossesHighline Canal
Location0.9 Mi. No. of Co. Rd. 28
RouteCounty Highway 0
Coordinates40.95222, -102.57528
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 rating62.3 US tons
Inventory rating37.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span43 ft (13.1 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic13 by 2042
Trucks44%
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 9 over Highline Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 9 over Highline 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 November 2023.

How much traffic does County Road 9 over Highline Canal carry?

About 11 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is County Road 9 over Highline Canal?

The structure is 51 ft (15.5 m) long with a longest span of 43 ft (13.1 m) and a deck 31 ft wide.

Who owns County Road 9 over Highline Canal?

It is owned by the County Highway Agency.