US Bridges

Galloping Hill RD over Gsp

Fair

Union County, New Jersey · 1.6 MI North of Nj 28 · Structure no. 361402T

Built
1951
74 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
149 ft
2 main spans
Daily traffic
49,742
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Galloping Hill RD over Gsp is a steel stringer/multi-beam or girder carrying Galloping Hill RD over Gsp in Union County, New Jersey. It was built in 1951, so it is 74 years old, older than the New Jersey average of 58.5 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 49,742 vehicles a day, roughly 4% of them trucks, projected to reach 60,695 by 2043. The structure is 149 ft (45.4 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGalloping Hill RD
CrossesGsp
Location1.6 MI North of Nj 28
RouteCounty Highway 509
CountyUnion County
StateNew Jersey
Coordinates40.67994, -74.27823
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span73 ft (22.3 m)
Deck width80 ft (24.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,742 (2023)
Projected traffic60,695 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Galloping Hill RD over Gsp built?

It was built in 1951, making it 74 years old in 2025.

What condition is Galloping Hill RD over Gsp 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 2023.

How much traffic does Galloping Hill RD over Gsp carry?

About 49,742 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Galloping Hill RD over Gsp?

The structure is 149 ft (45.4 m) long with a longest span of 73 ft (22.3 m) and a deck 80 ft wide.

Who owns Galloping Hill RD over Gsp?

It is owned by the State Toll Authority.