US Bridges

Pa 61 (lr 141) over Mahannon Creek

Good

Schuylkill County, Pennsylvania · At S.Liberty Street · Structure no. 000000000030526

Built
1936
89 years old, rebuilt 2013
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
17,751
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 61 (lr 141) over Mahannon Creek is a prestressed concrete box beam or girders - multiple carrying Pa 61 (lr 141) over Mahannon Creek in Schuylkill County, Pennsylvania. It was built in 1936 and reconstructed in 2013, so it is 89 years old, older 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 17,751 vehicles a day, roughly 11% of them trucks, projected to reach 21,606 by 2032. The structure is 27 ft (8.2 m) long and 69 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesPa 61 (lr 141)
CrossesMahannon Creek
LocationAt S.Liberty Street
RouteState Highway 61
Coordinates40.64171, -76.10568
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,751 (2023)
Projected traffic21,606 by 2032
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$891,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 61 (lr 141) over Mahannon Creek built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2013.

What condition is Pa 61 (lr 141) over Mahannon 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 October 2023.

How much traffic does Pa 61 (lr 141) over Mahannon Creek carry?

About 17,751 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Pa 61 (lr 141) over Mahannon Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 69 ft wide.

Who owns Pa 61 (lr 141) over Mahannon Creek?

It is owned by the State Highway Agency.