US Bridges

T-536 (obie Road) over Hammer Creek

Good

Lebanon County, Pennsylvania · 1.5M Keller Air/Hammer CR · Structure no. 000000000022845

Built
1973
52 years old, rebuilt 2012
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
100
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-536 (obie Road) over Hammer Creek is a prestressed concrete box beam or girders - multiple carrying T-536 (obie Road) over Hammer Creek in Lebanon County, Pennsylvania. It was built in 1973 and reconstructed in 2012, so it is 52 years old, younger 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 100 vehicles a day, roughly 20% of them trucks, projected to reach 150 by 2033. The structure is 50 ft (15.2 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT-536 (obie Road)
CrossesHammer Creek
Location1.5M Keller Air/Hammer CR
RouteCity Street 0
Coordinates40.27106, -76.32174
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2013)
Projected traffic150 by 2033
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T-536 (obie Road) over Hammer Creek built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2012.

What condition is T-536 (obie Road) over Hammer Creek 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 March 2023.

How much traffic does T-536 (obie Road) over Hammer Creek carry?

About 100 vehicles per day (2013 count), of which roughly 20% are trucks.

How long is T-536 (obie Road) over Hammer Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 30 ft wide.

Who owns T-536 (obie Road) over Hammer Creek?

It is owned by the Town or Township Highway Agency.