US Bridges

NB Pena Blvd over E 56th Avenue

Fair

Denver County, Colorado · 1.5 MI North of I-70 · Structure no. D-31-PB-210

Built
1993
32 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
229 ft
2 main spans
Daily traffic
54,351
2021 count
Owner
Local
Other Local Agency

About this bridge

NB Pena Blvd over E 56th Avenue is a prestressed concrete continuous box beam or girders - multiple carrying NB Pena Blvd over E 56th Avenue in Denver County, Colorado. It was built in 1993, 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 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 54,351 vehicles a day, roughly 6% of them trucks, projected to reach 60,330 by 2041. The structure is 229 ft (69.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB Pena Blvd
CrossesE 56th Avenue
Location1.5 MI North of I-70
RouteCity Street 0
Coordinates39.798, -104.7864
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.7 US tons
Inventory rating49.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span111 ft (33.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,351 (2021)
Projected traffic60,330 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 NB Pena Blvd over E 56th Avenue built?

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

What condition is NB Pena Blvd over E 56th Avenue 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 NB Pena Blvd over E 56th Avenue carry?

About 54,351 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is NB Pena Blvd over E 56th Avenue?

The structure is 229 ft (69.8 m) long with a longest span of 111 ft (33.8 m) and a deck 43 ft wide.

Who owns NB Pena Blvd over E 56th Avenue?

It is owned by the Other Local Agency.