US Bridges

Mount Jackson Road over Mahoning River

Fair

Lawrence County, Pennsylvania · 150 Ft NW of SR 0018 · Structure no. 000000000041285

Built
2001
24 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
346 ft
3 main spans
Daily traffic
4,754
2024 count
Owner
State
State Highway Agency

About this bridge

Mount Jackson Road over Mahoning River is a steel continuous stringer/multi-beam or girder carrying Mount Jackson Road over Mahoning River in Lawrence County, Pennsylvania. It was built in 2001, so it is 24 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 4,754 vehicles a day, roughly 10% of them trucks, projected to reach 6,382 by 2032. The structure is 346 ft (105.5 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesMount Jackson Road
CrossesMahoning River
Location150 Ft NW of SR 0018
RouteState Highway 108
Coordinates40.9707, -80.38418
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length346 ft (105.5 m)
Longest span114 ft (34.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,754 (2024)
Projected traffic6,382 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

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 Mount Jackson Road over Mahoning River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mount Jackson Road over Mahoning River 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 July 2024.

How much traffic does Mount Jackson Road over Mahoning River carry?

About 4,754 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mount Jackson Road over Mahoning River?

The structure is 346 ft (105.5 m) long with a longest span of 114 ft (34.7 m) and a deck 43 ft wide.

Who owns Mount Jackson Road over Mahoning River?

It is owned by the State Highway Agency.