US Bridges

SR 147 over Over S.R. 45

Fair

Northumberland County, Pennsylvania · 0.5 MI E of Montandon · Structure no. 000000000029055

Built
1971
54 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
176 ft
3 main spans
Daily traffic
9,150
2023 count
Owner
State
State Highway Agency

About this bridge

SR 147 over Over S.R. 45 is a prestressed concrete stringer/multi-beam or girder carrying SR 147 over Over S.R. 45 in Northumberland County, Pennsylvania. It was built in 1971, so it is 54 years old, younger 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 6 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 9,150 vehicles a day, roughly 12% of them trucks, projected to reach 9,347 by 2032. The structure is 176 ft (53.6 m) long and 48 ft wide.

Location

Open in Google Maps
CarriesSR 147
CrossesOver S.R. 45
Location0.5 MI E of Montandon
RouteState Highway 147
CountyNorthumberland County
StatePennsylvania
Coordinates40.96475, -76.84392
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span89 ft (27.1 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (13.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,150 (2023)
Projected traffic9,347 by 2032
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 147 over Over S.R. 45 built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 147 over Over S.R. 45 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 November 2023.

How much traffic does SR 147 over Over S.R. 45 carry?

About 9,150 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 147 over Over S.R. 45?

The structure is 176 ft (53.6 m) long with a longest span of 89 ft (27.1 m) and a deck 48 ft wide.

Who owns SR 147 over Over S.R. 45?

It is owned by the State Highway Agency.