US Bridges

Eastbound 56th Ave over Montbello Ditch

Fair

Denver County, Colorado · Just W of Havana ST · Structure no. D-20-MB-785

Built
1995
30 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
15,700
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eastbound 56th Ave over Montbello Ditch is a prestressed concrete slab carrying Eastbound 56th Ave over Montbello Ditch in Denver County, Colorado. It was built in 1995, so it is 30 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 15,700 vehicles a day, roughly 6% of them trucks, projected to reach 17,427 by 2041. The structure is 52 ft (15.8 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEastbound 56th Ave
CrossesMontbello Ditch
LocationJust W of Havana ST
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.7986, -104.86662
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
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span46 ft (14 m)
Deck width75 ft (22.8 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,700 (2021)
Projected traffic17,427 by 2041
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Eastbound 56th Ave over Montbello Ditch built?

It was built in 1995, making it 30 years old in 2025.

What condition is Eastbound 56th Ave over Montbello Ditch 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 2024.

How much traffic does Eastbound 56th Ave over Montbello Ditch carry?

About 15,700 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Eastbound 56th Ave over Montbello Ditch?

The structure is 52 ft (15.8 m) long with a longest span of 46 ft (14 m) and a deck 75 ft wide.

Who owns Eastbound 56th Ave over Montbello Ditch?

It is owned by the City or Municipal Highway Agency.