US Bridges

Hamilton Street over Leh.R. NS(0521) Alb.St.

Fair

Lehigh County, Pennsylvania · Lehigh River Bridge · Structure no. 000000000023510

Built
1959
66 years old, rebuilt 1994
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
830 ft
9 main spans
Daily traffic
24,900
1993 count
Owner
County
County Highway Agency

About this bridge

Hamilton Street over Leh.R. NS(0521) Alb.St. is a prestressed concrete stringer/multi-beam or girder carrying Hamilton Street over Leh.R. NS(0521) Alb.St. in Lehigh County, Pennsylvania. It was built in 1959 and reconstructed in 1994, so it is 66 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 5 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 24,900 vehicles a day, roughly 8% of them trucks, projected to reach 49,280 by 2013. The structure is 830 ft (253 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHamilton Street
CrossesLeh.R. NS(0521) Alb.St.
LocationLehigh River Bridge
RouteCity Street 0
CountyLehigh County
StatePennsylvania
Coordinates40.6064, -75.4541
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating94 US tons
Inventory rating17 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length830 ft (253 m)
Longest span95 ft (29 m)
Deck width64 ft (19.4 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,900 (1993)
Projected traffic49,280 by 2013
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$4.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamilton Street over Leh.R. NS(0521) Alb.St. built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1994.

What condition is Hamilton Street over Leh.R. NS(0521) Alb.St. 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 June 2024.

How much traffic does Hamilton Street over Leh.R. NS(0521) Alb.St. carry?

About 24,900 vehicles per day (1993 count), of which roughly 8% are trucks.

How long is Hamilton Street over Leh.R. NS(0521) Alb.St.?

The structure is 830 ft (253 m) long with a longest span of 95 ft (29 m) and a deck 64 ft wide.

Who owns Hamilton Street over Leh.R. NS(0521) Alb.St.?

It is owned by the County Highway Agency.