US Bridges

48th Ave over RR Yard/Access Road

Fair

Denver County, Colorado · 48th Btwn Fox+kalamath · Structure no. D-03-V-010

Built
1978
47 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,143 ft
11 main spans
Daily traffic
9,279
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

48th Ave over RR Yard/Access Road is a prestressed concrete continuous stringer/multi-beam or girder carrying 48th Ave over RR Yard/Access Road in Denver County, Colorado. It was built in 1978, so it is 47 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 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 9,279 vehicles a day, roughly 4% of them trucks, projected to reach 10,299 by 2041. The structure is 1,143 ft (348.4 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries48th Ave
CrossesRR Yard/Access Road
Location48th Btwn Fox+kalamath
RouteCity Street 0
CountyDenver County
StateColorado
Coordinates39.78396, -104.99918
Functional classUrban Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.7 US tons
Inventory rating21.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length1,143 ft (348.4 m)
Longest span108 ft (32.9 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,279 (2021)
Projected traffic10,299 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.9 mi (3 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 48th Ave over RR Yard/Access Road built?

It was built in 1978, making it 47 years old in 2025.

What condition is 48th Ave over RR Yard/Access Road 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 48th Ave over RR Yard/Access Road carry?

About 9,279 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is 48th Ave over RR Yard/Access Road?

The structure is 1,143 ft (348.4 m) long with a longest span of 108 ft (32.9 m) and a deck 37 ft wide.

Who owns 48th Ave over RR Yard/Access Road?

It is owned by the City or Municipal Highway Agency.