US Bridges

SR2012 LR39023 over Pa Tpk (I-476)

Fair

Lehigh County, Pennsylvania · Near Emmaus Borough · Structure no. 000000000023548

Built
1955
70 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel
Length
118 ft
1 main span
Daily traffic
11,897
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR2012 LR39023 over Pa Tpk (I-476) is a steel girder and floorbeam system carrying SR2012 LR39023 over Pa Tpk (I-476) in Lehigh County, Pennsylvania. It was built in 1955, so it is 70 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 11,897 vehicles a day, roughly 1% of them trucks, projected to reach 18,453 by 2030. The structure is 118 ft (36 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR2012 LR39023
CrossesPa Tpk (I-476)
LocationNear Emmaus Borough
RouteState Highway 0
CountyLehigh County
StatePennsylvania
Coordinates40.54375, -75.53162
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length118 ft (36 m)
Longest span115 ft (35.1 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,897 (2024)
Projected traffic18,453 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$321,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR2012 LR39023 over Pa Tpk (I-476) built?

It was built in 1955, making it 70 years old in 2025.

What condition is SR2012 LR39023 over Pa Tpk (I-476) 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 August 2023.

How much traffic does SR2012 LR39023 over Pa Tpk (I-476) carry?

About 11,897 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR2012 LR39023 over Pa Tpk (I-476)?

The structure is 118 ft (36 m) long with a longest span of 115 ft (35.1 m) and a deck 36 ft wide.

Who owns SR2012 LR39023 over Pa Tpk (I-476)?

It is owned by the State Toll Authority.