US Bridges

Forest Drive over Trib. to Troy Brook

Good

Morris County, New Jersey · 0.8MI NW I287/US202/US46 · Structure no. 1429004

Built
1975
50 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
1,139
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Forest Drive over Trib. to Troy Brook is a concrete culvert carrying Forest Drive over Trib. to Troy Brook in Morris County, New Jersey. It was built in 1975, so it is 50 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 1,139 vehicles a day, roughly 1% of them trucks, projected to reach 1,390 by 2043. The structure is 27 ft (8.2 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesForest Drive
CrossesTrib. to Troy Brook
Location0.8MI NW I287/US202/US46
RouteCity Street 0
Coordinates40.878, -74.43103
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width58 ft (17.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,139 (2023)
Projected traffic1,390 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Forest Drive over Trib. to Troy Brook built?

It was built in 1975, making it 50 years old in 2025.

What condition is Forest Drive over Trib. to Troy 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 July 2023.

How much traffic does Forest Drive over Trib. to Troy Brook carry?

About 1,139 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Forest Drive over Trib. to Troy Brook?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 58 ft wide.

Who owns Forest Drive over Trib. to Troy Brook?

It is owned by the Town or Township Highway Agency.