US Bridges

New Kensington Brg over SR 9109 N&s Pine Allriv

Fair

Allegheny County, Pennsylvania · New Kensington Bridge · Structure no. 000000000001475

Built
1927
98 years old, rebuilt 1989
Condition
Fair
inspected March 2023
Type
Truss - Thru
Steel
Length
1,528 ft
3 main spans
Daily traffic
20,333
2024 count
Owner
State
State Highway Agency

About this bridge

New Kensington Brg over SR 9109 N&s Pine Allriv is a steel truss - thru carrying New Kensington Brg over SR 9109 N&s Pine Allriv in Allegheny County, Pennsylvania. It was built in 1927 and reconstructed in 1989, so it is 98 years old, older than the Pennsylvania average of 54.8 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 20,333 vehicles a day, roughly 7% of them trucks, projected to reach 20,700 by 2032. The structure is 1,528 ft (465.7 m) long and 38 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNew Kensington Brg
CrossesSR 9109 N&s Pine Allriv
LocationNew Kensington Bridge
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.56361, -79.77425
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+11 approach)
Design loadHS 20
Structure length1,528 ft (465.7 m)
Longest span370 ft (112.8 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic20,333 (2024)
Projected traffic20,700 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was New Kensington Brg over SR 9109 N&s Pine Allriv built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1989.

What condition is New Kensington Brg over SR 9109 N&s Pine Allriv 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 March 2023.

How much traffic does New Kensington Brg over SR 9109 N&s Pine Allriv carry?

About 20,333 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is New Kensington Brg over SR 9109 N&s Pine Allriv?

The structure is 1,528 ft (465.7 m) long with a longest span of 370 ft (112.8 m) and a deck 38 ft wide.

Who owns New Kensington Brg over SR 9109 N&s Pine Allriv?

It is owned by the State Highway Agency.