US Bridges

S Monaco ST Pkwy over Highline Canal

Fair

Denver County, Colorado · Monaco North of Yale Ave · Structure no. D-10-HC-180

Built
1964
61 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
24,144
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Monaco ST Pkwy over Highline Canal is a prestressed concrete tee beam carrying S Monaco ST Pkwy over Highline Canal in Denver County, Colorado. It was built in 1964, so it is 61 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 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 24,144 vehicles a day, roughly 5% of them trucks, projected to reach 26,800 by 2041. The structure is 46 ft (14 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Monaco ST Pkwy
CrossesHighline Canal
LocationMonaco North of Yale Ave
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.66913, -104.91302
Functional classUrban Minor 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
Deck9 ExcellentNo problems noted.
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.5 US tons
Inventory rating21.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width90 ft (27.4 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,144 (2021)
Projected traffic26,800 by 2041
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 S Monaco ST Pkwy over Highline Canal built?

It was built in 1964, making it 61 years old in 2025.

What condition is S Monaco ST Pkwy 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 December 2024.

How much traffic does S Monaco ST Pkwy over Highline Canal carry?

About 24,144 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is S Monaco ST Pkwy over Highline Canal?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 90 ft wide.

Who owns S Monaco ST Pkwy over Highline Canal?

It is owned by the City or Municipal Highway Agency.