US Bridges

US 22(LR 771) over T-638(IRVING St.)

Good

Lehigh County, Pennsylvania · US 22 over Irving St. · Structure no. 000000000022976

Built
1952
73 years old, rebuilt 1999
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
113 ft
3 main spans
Daily traffic
92,608
2024 count
Owner
State
State Highway Agency

About this bridge

US 22(LR 771) over T-638(IRVING St.) is a steel continuous stringer/multi-beam or girder carrying US 22(LR 771) over T-638(IRVING St.) in Lehigh County, Pennsylvania. It was built in 1952 and reconstructed in 1999, so it is 73 years old, older 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 92,608 vehicles a day, roughly 9% of them trucks, projected to reach 109,216 by 2032. The structure is 113 ft (34.4 m) long and 110 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 22(LR 771)
CrossesT-638(IRVING St.)
LocationUS 22 over Irving St.
RouteU.S. Route 22
Coordinates40.6381, -75.44715
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating57 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length113 ft (34.4 m)
Longest span50 ft (15.2 m)
Deck width110 ft (33.6 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92,608 (2024)
Projected traffic109,216 by 2032
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 22(LR 771) over T-638(IRVING St.) built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1999.

What condition is US 22(LR 771) over T-638(IRVING St.) 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 October 2023.

How much traffic does US 22(LR 771) over T-638(IRVING St.) carry?

About 92,608 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is US 22(LR 771) over T-638(IRVING St.)?

The structure is 113 ft (34.4 m) long with a longest span of 50 ft (15.2 m) and a deck 110 ft wide.

Who owns US 22(LR 771) over T-638(IRVING St.)?

It is owned by the State Highway Agency.