US Bridges

Pa 29(LR 158) over Norfolk/Southern RR

Good

Lehigh County, Pennsylvania · 0.2 Mi.S.Of Turnpike · Structure no. 000000000068153

Built
2021
4 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
18,552
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 29(LR 158) over Norfolk/Southern RR is a prestressed concrete stringer/multi-beam or girder carrying Pa 29(LR 158) over Norfolk/Southern RR in Lehigh County, Pennsylvania. It was built in 2021, so it is 4 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,552 vehicles a day, roughly 12% of them trucks, projected to reach 23,214 by 2032. The structure is 112 ft (34.1 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesPa 29(LR 158)
CrossesNorfolk/Southern RR
Location0.2 Mi.S.Of Turnpike
RouteState Highway 29
CountyLehigh County
StatePennsylvania
Coordinates40.52353, -75.51808
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length112 ft (34.1 m)
Longest span109 ft (33.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,552 (2024)
Projected traffic23,214 by 2032
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa 29(LR 158) over Norfolk/Southern RR built?

It was built in 2021, making it 4 years old in 2025.

What condition is Pa 29(LR 158) over Norfolk/Southern RR 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 September 2023.

How much traffic does Pa 29(LR 158) over Norfolk/Southern RR carry?

About 18,552 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Pa 29(LR 158) over Norfolk/Southern RR?

The structure is 112 ft (34.1 m) long with a longest span of 109 ft (33.2 m) and a deck 43 ft wide.

Who owns Pa 29(LR 158) over Norfolk/Southern RR?

It is owned by the State Highway Agency.