US Bridges

T-304 (plank Road) over Lehigh River

Good

Lackawanna County, Pennsylvania · Clifton Twp 1 MI SW I-380 · Structure no. 000000000070351

Built
2021
4 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

T-304 (plank Road) over Lehigh River is a prestressed concrete box beam or girders - multiple carrying T-304 (plank Road) over Lehigh River in Lackawanna County, Pennsylvania. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 60 by 2042. The structure is 80 ft (24.4 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT-304 (plank Road)
CrossesLehigh River
LocationClifton Twp 1 MI SW I-380
RouteCity Street 0
CountyLackawanna County
StatePennsylvania
Coordinates41.22567, -75.51069
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span78 ft (23.8 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic60 by 2042
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-304 (plank Road) over Lehigh River built?

It was built in 2021, making it 4 years old in 2025.

What condition is T-304 (plank Road) over Lehigh River 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 March 2024.

How much traffic does T-304 (plank Road) over Lehigh River carry?

About 40 vehicles per day (2024 count).

How long is T-304 (plank Road) over Lehigh River?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.8 m) and a deck 17 ft wide.

Who owns T-304 (plank Road) over Lehigh River?

It is owned by the County Highway Agency.