US Bridges

Broadway over Highline Canal

Fair

Arapahoe County, Colorado · 0.5 MI N of Arapahoe RD · Structure no. CENT 15-2.5

Built
1974
51 years old
Condition
Fair
inspected October 2023
Type
Frame
Concrete
Length
41 ft
1 main span
Daily traffic
35,473
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Broadway over Highline Canal is a concrete frame carrying Broadway over Highline Canal in Arapahoe County, Colorado. It was built in 1974, so it is 51 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 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 35,473 vehicles a day, roughly 5% of them trucks, projected to reach 43,277 by 2041. The structure is 41 ft (12.5 m) long and 91 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBroadway
CrossesHighline Canal
Location0.5 MI N of Arapahoe RD
RouteCity Street 0
Coordinates39.60237, -104.98817
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating110.1 US tons
Inventory rating68.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span38 ft (11.7 m)
Deck width91 ft (27.6 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,473 (2021)
Projected traffic43,277 by 2041
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Broadway over Highline Canal built?

It was built in 1974, making it 51 years old in 2025.

What condition is Broadway 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 October 2023.

How much traffic does Broadway over Highline Canal carry?

About 35,473 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Broadway over Highline Canal?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.7 m) and a deck 91 ft wide.

Who owns Broadway over Highline Canal?

It is owned by the City or Municipal Highway Agency.