US Bridges

Brookstone Drive over Watnong Brook

Fair

Morris County, New Jersey · 0.5MI N of NJ10&NJ53 JCT · Structure no. 1429003

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
564
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Brookstone Drive over Watnong Brook is a steel stringer/multi-beam or girder carrying Brookstone Drive over Watnong Brook in Morris County, New Jersey. It was built in 1985, so it is 40 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 564 vehicles a day, roughly 1% of them trucks, projected to reach 687 by 2043. The structure is 29 ft (8.8 m) long and 48 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesBrookstone Drive
CrossesWatnong Brook
Location0.5MI N of NJ10&NJ53 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.85842, -74.47148
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width48 ft (14.6 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic564 (2023)
Projected traffic687 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Brookstone Drive over Watnong Brook built?

It was built in 1985, making it 40 years old in 2025.

What condition is Brookstone Drive over Watnong Brook 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 August 2023.

How much traffic does Brookstone Drive over Watnong Brook carry?

About 564 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Brookstone Drive over Watnong Brook?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 48 ft wide.

Who owns Brookstone Drive over Watnong Brook?

It is owned by the Town or Township Highway Agency.