US Bridges

SR1011 (8th Ave) over Norfolk Southern RR

PoorPosted for load

Lehigh County, Pennsylvania · At Rte. 378 Interchange · Structure no. 000000000023236

Built
1967
58 years old
Condition
Poor
inspected June 2024
Type
Frame
Concrete
Length
31 ft
1 main span
Daily traffic
18,578
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

SR1011 (8th Ave) over Norfolk Southern RR is a concrete frame carrying SR1011 (8th Ave) over Norfolk Southern RR in Lehigh County, Pennsylvania. It was built in 1967, so it is 58 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 18,578 vehicles a day, roughly 3% of them trucks, projected to reach 28,256 by 2032. The structure is 31 ft (9.4 m) long and 73 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSR1011 (8th Ave)
CrossesNorfolk Southern RR
LocationAt Rte. 378 Interchange
RouteState Highway 0
CountyLehigh County
StatePennsylvania
Coordinates40.6297, -75.39501
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span27 ft (8.2 m)
Deck width73 ft (22.2 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,578 (2023)
Projected traffic28,256 by 2032
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$557,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1011 (8th Ave) over Norfolk Southern RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR1011 (8th Ave) over Norfolk Southern RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does SR1011 (8th Ave) over Norfolk Southern RR carry?

About 18,578 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR1011 (8th Ave) over Norfolk Southern RR?

The structure is 31 ft (9.4 m) long with a longest span of 27 ft (8.2 m) and a deck 73 ft wide.

Who owns SR1011 (8th Ave) over Norfolk Southern RR?

It is owned by the City or Municipal Highway Agency.