US Bridges

Nj 45 over Mantua Creek

Fair

Gloucester County, New Jersey · 0.2 MI N of RT45&632 JCT · Structure no. 0808153

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
14,637
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 45 over Mantua Creek is a steel stringer/multi-beam or girder carrying Nj 45 over Mantua Creek in Gloucester County, New Jersey. It was built in 1972, so it is 53 years old, younger 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 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 14,637 vehicles a day, roughly 4% of them trucks, projected to reach 17,564 by 2044. The structure is 67 ft (20.4 m) long and 94 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNj 45
CrossesMantua Creek
Location0.2 MI N of RT45&632 JCT
RouteState Highway 45
CountyGloucester County
StateNew Jersey
Coordinates39.79497, -75.172
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span62 ft (18.9 m)
Deck width94 ft (28.7 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,637 (2024)
Projected traffic17,564 by 2044
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 45 over Mantua Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Nj 45 over Mantua Creek 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 June 2024.

How much traffic does Nj 45 over Mantua Creek carry?

About 14,637 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 45 over Mantua Creek?

The structure is 67 ft (20.4 m) long with a longest span of 62 ft (18.9 m) and a deck 94 ft wide.

Who owns Nj 45 over Mantua Creek?

It is owned by the State Highway Agency.