US Bridges

SR0156 over Norfolk Southern RR

Poor

Armstrong County, Pennsylvania · Avonmore Station · Structure no. 000000000003043

Built
1949
76 years old
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
127 ft
3 main spans
Daily traffic
643
2024 count
Owner
Railroad
Railroad

About this bridge

SR0156 over Norfolk Southern RR is a steel stringer/multi-beam or girder carrying SR0156 over Norfolk Southern RR in Armstrong County, Pennsylvania. It was built in 1949, so it is 76 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 643 vehicles a day, roughly 16% of them trucks, projected to reach 1,233 by 2032. The structure is 127 ft (38.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR0156
CrossesNorfolk Southern RR
LocationAvonmore Station
RouteState Highway 156
CountyArmstrong County
StatePennsylvania
Coordinates40.53517, -79.46794
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length127 ft (38.7 m)
Longest span46 ft (14 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic643 (2024)
Projected traffic1,233 by 2032
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR0156 over Norfolk Southern RR built?

It was built in 1949, making it 76 years old in 2025.

What condition is SR0156 over Norfolk Southern RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does SR0156 over Norfolk Southern RR carry?

About 643 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR0156 over Norfolk Southern RR?

The structure is 127 ft (38.7 m) long with a longest span of 46 ft (14 m) and a deck 31 ft wide.

Who owns SR0156 over Norfolk Southern RR?

It is owned by the Railroad.