US Bridges

South Lehigh St. over Little Lehigh Creek

Good

Lehigh County, Pennsylvania · Lehigh Street Bridge · Structure no. 000000000068254

Built
2023
2 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
110 ft
2 main spans
Daily traffic
13,748
2024 count
Owner
County
County Highway Agency

About this bridge

South Lehigh St. over Little Lehigh Creek is a prestressed concrete box beam or girders - multiple carrying South Lehigh St. over Little Lehigh Creek in Lehigh County, Pennsylvania. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,748 vehicles a day, roughly 1% of them trucks, projected to reach 14,438 by 2039. The structure is 110 ft (33.5 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Lehigh St.
CrossesLittle Lehigh Creek
LocationLehigh Street Bridge
RouteState Highway 145
Coordinates40.59709, -75.46715
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length110 ft (33.5 m)
Longest span60 ft (18.3 m)
Deck width74 ft (22.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,748 (2024)
Projected traffic14,438 by 2039
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was South Lehigh St. over Little Lehigh Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is South Lehigh St. over Little Lehigh Creek 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 July 2023.

How much traffic does South Lehigh St. over Little Lehigh Creek carry?

About 13,748 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is South Lehigh St. over Little Lehigh Creek?

The structure is 110 ft (33.5 m) long with a longest span of 60 ft (18.3 m) and a deck 74 ft wide.

Who owns South Lehigh St. over Little Lehigh Creek?

It is owned by the County Highway Agency.