US Bridges

Liberty Street over Shamokin Creek

Fair

Northumberland County, Pennsylvania · City of Shamokin · Structure no. 000000000029398

Built
1910
115 years old, rebuilt 1979
Condition
Fair
inspected March 2023
Type
Girder and Floorbeam System
Steel
Length
77 ft
1 main span
Daily traffic
2,900
2019 count
Owner
County
County Highway Agency

About this bridge

Liberty Street over Shamokin Creek is a steel girder and floorbeam system carrying Liberty Street over Shamokin Creek in Northumberland County, Pennsylvania. It was built in 1910 and reconstructed in 1979, so it is 115 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 2,900 vehicles a day, roughly 1% of them trucks, projected to reach 4,485 by 2041. The structure is 77 ft (23.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLiberty Street
CrossesShamokin Creek
LocationCity of Shamokin
RouteCity Street 0
CountyNorthumberland County
StatePennsylvania
Coordinates40.7914, -76.55377
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span74 ft (22.6 m)
Deck width40 ft (12.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2019)
Projected traffic4,485 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$854,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Liberty Street over Shamokin Creek built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1979.

What condition is Liberty Street over Shamokin 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 March 2023.

How much traffic does Liberty Street over Shamokin Creek carry?

About 2,900 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Liberty Street over Shamokin Creek?

The structure is 77 ft (23.5 m) long with a longest span of 74 ft (22.6 m) and a deck 40 ft wide.

Who owns Liberty Street over Shamokin Creek?

It is owned by the County Highway Agency.