US Bridges

Long Road over Highline Canal

Fair

Arapahoe County, Colorado · .3 MI E University Blvd · Structure no. GWDV-05-0.27-01

Built
1990
35 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete
Length
30 ft
1 main span
Daily traffic
4,020
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Long Road over Highline Canal is a concrete frame carrying Long Road over Highline Canal in Arapahoe County, Colorado. It was built in 1990, so it is 35 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 5 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 4,020 vehicles a day, roughly 2% of them trucks, projected to reach 4,904 by 2041. The structure is 30 ft (9.1 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLong Road
CrossesHighline Canal
Location.3 MI E University Blvd
RouteCity Street 0
CountyArapahoe County
StateColorado
Coordinates39.61153, -104.95425
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.8 US tons
Inventory rating54.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width41 ft (12.6 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,020 (2021)
Projected traffic4,904 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Long Road over Highline Canal built?

It was built in 1990, making it 35 years old in 2025.

What condition is Long Road 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 September 2023.

How much traffic does Long Road over Highline Canal carry?

About 4,020 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Long Road over Highline Canal?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.

Who owns Long Road over Highline Canal?

It is owned by the City or Municipal Highway Agency.