US Bridges

SR 147 NB over Over Limestone Run

Good

Northumberland County, Pennsylvania · 1 Mile East of Milton · Structure no. 000000000041869

Built
2002
23 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
7,688
2024 count
Owner
State
State Highway Agency

About this bridge

SR 147 NB over Over Limestone Run is a prestressed concrete stringer/multi-beam or girder carrying SR 147 NB over Over Limestone Run in Northumberland County, Pennsylvania. It was built in 2002, so it is 23 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 7,688 vehicles a day, roughly 25% of them trucks, projected to reach 6,002 by 2032. The structure is 60 ft (18.3 m) long and 55 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesSR 147 NB
CrossesOver Limestone Run
Location1 Mile East of Milton
RouteState Highway 147
Coordinates41.01611, -76.83191
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width55 ft (16.9 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,688 (2024)
Projected traffic6,002 by 2032
Trucks25%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 147 NB over Over Limestone Run built?

It was built in 2002, making it 23 years old in 2025.

What condition is SR 147 NB over Over Limestone Run 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 December 2023.

How much traffic does SR 147 NB over Over Limestone Run carry?

About 7,688 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is SR 147 NB over Over Limestone Run?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 55 ft wide.

Who owns SR 147 NB over Over Limestone Run?

It is owned by the State Highway Agency.