US Bridges

Roxborough Park Ro over Highline Canal

Fair

Douglas County, Colorado · 1.8 MI North of Titan RD · Structure no. DOU003-06.40A

Built
1993
32 years old, rebuilt 2020
Condition
Fair
inspected January 2025
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
1,046
2021 count
Owner
County
County Highway Agency

About this bridge

Roxborough Park Ro over Highline Canal is a concrete frame carrying Roxborough Park Ro over Highline Canal in Douglas County, Colorado. It was built in 1993 and reconstructed in 2020, so it is 32 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 1,046 vehicles a day, roughly 2% of them trucks, projected to reach 1,401 by 2041. The structure is 23 ft (7 m) long and 60 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRoxborough Park Ro
CrossesHighline Canal
Location1.8 MI North of Titan RD
RouteCounty Highway 0
CountyDouglas County
StateColorado
Coordinates39.52919, -105.05464
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.8 US tons
Inventory rating56.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width60 ft (18.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,046 (2021)
Projected traffic1,401 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Roxborough Park Ro over Highline Canal built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2020.

What condition is Roxborough Park Ro 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 January 2025.

How much traffic does Roxborough Park Ro over Highline Canal carry?

About 1,046 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Roxborough Park Ro over Highline Canal?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 60 ft wide.

Who owns Roxborough Park Ro over Highline Canal?

It is owned by the County Highway Agency.