US Bridges

Westbound 56th Ave over Montbello Ditch

Good

Denver County, Colorado · Just W. of Havana ST · Structure no. D-20-MB-786

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
17,679
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Westbound 56th Ave over Montbello Ditch is a prestressed concrete box beam or girders - single or spread carrying Westbound 56th Ave over Montbello Ditch in Denver County, Colorado. It was built in 2010, so it is 15 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,679 vehicles a day, roughly 6% of them trucks, projected to reach 19,624 by 2041. The structure is 52 ft (15.8 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWestbound 56th Ave
CrossesMontbello Ditch
LocationJust W. of Havana ST
RouteCity Street 0
Coordinates39.7985, -104.86644
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.4 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span46 ft (14 m)
Deck width56 ft (17.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,679 (2021)
Projected traffic19,624 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 Westbound 56th Ave over Montbello Ditch built?

It was built in 2010, making it 15 years old in 2025.

What condition is Westbound 56th Ave over Montbello Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

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

About 17,679 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Westbound 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 56 ft wide.

Who owns Westbound 56th Ave over Montbello Ditch?

It is owned by the City or Municipal Highway Agency.