US Bridges

CR 547 SB over Manasquan River

Good

Monmouth County, New Jersey · On South Side of Exit 31 · Structure no. 1333175

Built
1981
44 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
121 ft
1 main span
Daily traffic
6,145
2022 count
Owner
State
State Highway Agency

About this bridge

CR 547 SB over Manasquan River is a steel stringer/multi-beam or girder carrying CR 547 SB 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 6,145 vehicles a day, roughly 4% of them trucks, projected to reach 7,495 by 2042. The structure is 121 ft (36.9 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 547 SB
CrossesManasquan River
LocationOn South Side of Exit 31
RouteCounty Highway 547
CountyMonmouth County
StateNew Jersey
Coordinates40.16158, -74.15483
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than 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 rating110.1 US tons
Inventory rating80 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span117 ft (35.7 m)
Deck width46 ft (14 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,145 (2022)
Projected traffic7,495 by 2042
Trucks4%
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 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 CR 547 SB over Manasquan River built?

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

What condition is CR 547 SB 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 CR 547 SB over Manasquan River carry?

About 6,145 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is CR 547 SB over Manasquan River?

The structure is 121 ft (36.9 m) long with a longest span of 117 ft (35.7 m) and a deck 46 ft wide.

Who owns CR 547 SB over Manasquan River?

It is owned by the State Highway Agency.