US Bridges

Pa 145SB(LR 153) over Pa 309 Nb(lr 781)

Fair

Lehigh County, Pennsylvania · PA.145SB over PA.309NB. · Structure no. 000000000023107

Built
1958
67 years old, rebuilt 1988
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
82 ft
1 main span
Daily traffic
6,789
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 145SB(LR 153) over Pa 309 Nb(lr 781) is a steel stringer/multi-beam or girder carrying Pa 145SB(LR 153) over Pa 309 Nb(lr 781) in Lehigh County, Pennsylvania. It was built in 1958 and reconstructed in 1988, so it is 67 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 6,789 vehicles a day, roughly 5% of them trucks, projected to reach 5,840 by 2032. The structure is 82 ft (25 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPa 145SB(LR 153)
CrossesPa 309 Nb(lr 781)
LocationPA.145SB over PA.309NB.
RouteState Highway 145
CountyLehigh County
StatePennsylvania
Coordinates40.55755, -75.43646
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating110.1 US tons
Inventory rating69 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span78 ft (23.8 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,789 (2024)
Projected traffic5,840 by 2032
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 145SB(LR 153) over Pa 309 Nb(lr 781) built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1988.

What condition is Pa 145SB(LR 153) over Pa 309 Nb(lr 781) 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 January 2024.

How much traffic does Pa 145SB(LR 153) over Pa 309 Nb(lr 781) carry?

About 6,789 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Pa 145SB(LR 153) over Pa 309 Nb(lr 781)?

The structure is 82 ft (25 m) long with a longest span of 78 ft (23.8 m) and a deck 41 ft wide.

Who owns Pa 145SB(LR 153) over Pa 309 Nb(lr 781)?

It is owned by the State Highway Agency.