US Bridges

SR 0341 Lr 624 over Pa Tpk (I-76)

Fair

Dauphin County, Pennsylvania · Londonderry Township · Structure no. 000000000014621

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Girder and Floorbeam System
Steel
Length
144 ft
1 main span
Daily traffic
2,462
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 0341 Lr 624 over Pa Tpk (I-76) is a steel girder and floorbeam system carrying SR 0341 Lr 624 over Pa Tpk (I-76) in Dauphin County, Pennsylvania. It was built in 1950, so it is 75 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 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 2,462 vehicles a day, roughly 3% of them trucks, projected to reach 2,561 by 2030. The structure is 144 ft (43.9 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 0341 Lr 624
CrossesPa Tpk (I-76)
LocationLondonderry Township
RouteState Highway 341
CountyDauphin County
StatePennsylvania
Coordinates40.20892, -76.65808
Functional classRural Major 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span139 ft (42.4 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,462 (2023)
Projected traffic2,561 by 2030
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$178,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0341 Lr 624 over Pa Tpk (I-76) built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 0341 Lr 624 over Pa Tpk (I-76) 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 SR 0341 Lr 624 over Pa Tpk (I-76) carry?

About 2,462 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR 0341 Lr 624 over Pa Tpk (I-76)?

The structure is 144 ft (43.9 m) long with a longest span of 139 ft (42.4 m) and a deck 34 ft wide.

Who owns SR 0341 Lr 624 over Pa Tpk (I-76)?

It is owned by the State Toll Authority.