US Bridges

County Rt 547 NB over Manasquan River

Good

Monmouth County, New Jersey · 0.42 MI S. of I-195 · Structure no. 1333176

Built
1981
44 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
119 ft
1 main span
Daily traffic
9,168
2024 count
Owner
State
State Highway Agency

About this bridge

County Rt 547 NB over Manasquan River is a steel stringer/multi-beam or girder carrying County Rt 547 NB over Manasquan River in Monmouth County, New Jersey. It was built in 1981, so it is 44 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,168 vehicles a day, roughly 3% of them trucks, projected to reach 11,001 by 2044. The structure is 119 ft (36.3 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Rt 547 NB
CrossesManasquan River
Location0.42 MI S. of I-195
RouteCounty Highway 547
CountyMonmouth County
StateNew Jersey
Coordinates40.16131, -74.1545
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length119 ft (36.3 m)
Longest span115 ft (35.1 m)
Deck width39 ft (11.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,168 (2024)
Projected traffic11,001 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$101,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Rt 547 NB over Manasquan River built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Rt 547 NB over Manasquan 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 August 2024.

How much traffic does County Rt 547 NB over Manasquan River carry?

About 9,168 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is County Rt 547 NB over Manasquan River?

The structure is 119 ft (36.3 m) long with a longest span of 115 ft (35.1 m) and a deck 39 ft wide.

Who owns County Rt 547 NB over Manasquan River?

It is owned by the State Highway Agency.