US Bridges

SR 8004 Ramp-B EB over Susquehanna River

Fair

Dauphin County, Pennsylvania · Clarks Ferry · Structure no. 000000000014768

Built
1986
39 years old
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
779 ft
6 main spans
Daily traffic
2,193
2024 count
Owner
State
State Highway Agency

About this bridge

SR 8004 Ramp-B EB over Susquehanna River is a steel continuous stringer/multi-beam or girder carrying SR 8004 Ramp-B EB over Susquehanna River in Dauphin County, Pennsylvania. It was built in 1986, so it is 39 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 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 2,193 vehicles a day, roughly 7% of them trucks, projected to reach 1,387 by 2032. The structure is 779 ft (237.4 m) long and 31 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesSR 8004 Ramp-B EB
CrossesSusquehanna River
LocationClarks Ferry
RouteState Highway 0
CountyDauphin County
StatePennsylvania
Coordinates40.39741, -77.00861
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length779 ft (237.4 m)
Longest span157 ft (47.9 m)
Deck width31 ft (9.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic2,193 (2024)
Projected traffic1,387 by 2032
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed24.9 mi (40 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 8004 Ramp-B EB over Susquehanna River built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR 8004 Ramp-B EB over Susquehanna 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 October 2022.

How much traffic does SR 8004 Ramp-B EB over Susquehanna River carry?

About 2,193 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 8004 Ramp-B EB over Susquehanna River?

The structure is 779 ft (237.4 m) long with a longest span of 157 ft (47.9 m) and a deck 31 ft wide.

Who owns SR 8004 Ramp-B EB over Susquehanna River?

It is owned by the State Highway Agency.