US Bridges

Greenfield Ave over I-376 Parkway East

Good

Allegheny County, Pennsylvania · 039 Greenfield Bridge · Structure no. 000000000054496

Built
2017
8 years old
Condition
Good
inspected October 2023
Type
Arch - Deck
Steel Continuous
Length
468 ft
1 main span
Daily traffic
11,424
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Greenfield Ave over I-376 Parkway East is a steel continuous arch - deck carrying Greenfield Ave over I-376 Parkway East in Allegheny County, Pennsylvania. It was built in 2017, so it is 8 years old, younger than the Pennsylvania average of 54.8 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 11,424 vehicles a day, roughly 10% of them trucks, projected to reach 11,424 by 2045. The structure is 468 ft (142.6 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGreenfield Ave
CrossesI-376 Parkway East
Location039 Greenfield Bridge
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.42857, -79.93788
Functional classUrban Local

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.
Substructure9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeArch - Deck
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length468 ft (142.6 m)
Longest span326 ft (99.4 m)
Deck width54 ft (16.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,424 (2023)
Projected traffic11,424 by 2045
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollToll bridge
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Greenfield Ave over I-376 Parkway East built?

It was built in 2017, making it 8 years old in 2025.

What condition is Greenfield Ave over I-376 Parkway East 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 2023.

How much traffic does Greenfield Ave over I-376 Parkway East carry?

About 11,424 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Greenfield Ave over I-376 Parkway East?

The structure is 468 ft (142.6 m) long with a longest span of 326 ft (99.4 m) and a deck 54 ft wide.

Who owns Greenfield Ave over I-376 Parkway East?

It is owned by the City or Municipal Highway Agency.