US Bridges

Oak Street over Beck Creek

Fair

Lebanon County, Pennsylvania · 1.9SW Leb City/Beck Cr. · Structure no. 000000000022873

Built
1937
88 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
63 ft
2 main spans
Daily traffic
900
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Oak Street over Beck Creek is a concrete tee beam carrying Oak Street over Beck Creek in Lebanon County, Pennsylvania. It was built in 1937, so it is 88 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 4,760 by 2033. The structure is 63 ft (19.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOak Street
CrossesBeck Creek
Location1.9SW Leb City/Beck Cr.
RouteCity Street 0
Coordinates40.31366, -76.47129
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2013)
Projected traffic4,760 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$68,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak Street over Beck Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Oak Street over Beck Creek 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 April 2023.

How much traffic does Oak Street over Beck Creek carry?

About 900 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Oak Street over Beck Creek?

The structure is 63 ft (19.2 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Oak Street over Beck Creek?

It is owned by the Town or Township Highway Agency.