US Bridges

CR 620 (glen Road) over Sparta Glen Brook

Good

Sussex County, New Jersey · 1.9 MI East of CR 517 · Structure no. 1900Q11

Built
2011
14 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
6,382
2023 count
Owner
County
County Highway Agency

About this bridge

CR 620 (glen Road) over Sparta Glen Brook is a prestressed concrete box beam or girders - multiple carrying CR 620 (glen Road) over Sparta Glen Brook in Sussex County, New Jersey. It was built in 2011, so it is 14 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 6,382 vehicles a day, roughly 3% of them trucks, projected to reach 7,658 by 2043. The structure is 32 ft (9.8 m) long and 34 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesCR 620 (glen Road)
CrossesSparta Glen Brook
Location1.9 MI East of CR 517
RouteCounty Highway 620
CountySussex County
StateNew Jersey
Coordinates41.03766, -74.60664
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.7 US tons
Inventory rating81.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span27 ft (8.2 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,382 (2023)
Projected traffic7,658 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$203,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 620 (glen Road) over Sparta Glen Brook built?

It was built in 2011, making it 14 years old in 2025.

What condition is CR 620 (glen Road) over Sparta Glen Brook 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 2023.

How much traffic does CR 620 (glen Road) over Sparta Glen Brook carry?

About 6,382 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 620 (glen Road) over Sparta Glen Brook?

The structure is 32 ft (9.8 m) long with a longest span of 27 ft (8.2 m) and a deck 34 ft wide.

Who owns CR 620 (glen Road) over Sparta Glen Brook?

It is owned by the County Highway Agency.