US Bridges

Wr Tracy DR(CR645) over Surprise Lake

Good

Union County, New Jersey · At Summit Municipal Line · Structure no. 2010037

Built
1935
90 years old, rebuilt 2019
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
2,414
2024 count
Owner
County
County Highway Agency

About this bridge

Wr Tracy DR(CR645) over Surprise Lake is a concrete slab carrying Wr Tracy DR(CR645) over Surprise Lake in Union County, New Jersey. It was built in 1935 and reconstructed in 2019, so it is 90 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 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 2,414 vehicles a day, roughly 4% of them trucks, projected to reach 2,945 by 2044. The structure is 26 ft (7.9 m) long and 42 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesWr Tracy DR(CR645)
CrossesSurprise Lake
LocationAt Summit Municipal Line
RouteCounty Highway 645
Coordinates40.69342, -74.3706
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width42 ft (12.7 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,414 (2024)
Projected traffic2,945 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wr Tracy DR(CR645) over Surprise Lake built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2019.

What condition is Wr Tracy DR(CR645) over Surprise Lake 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 March 2024.

How much traffic does Wr Tracy DR(CR645) over Surprise Lake carry?

About 2,414 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Wr Tracy DR(CR645) over Surprise Lake?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.

Who owns Wr Tracy DR(CR645) over Surprise Lake?

It is owned by the County Highway Agency.