US Bridges

Waterloo Drive over Watnong Brook

Fair

Morris County, New Jersey · 1.1MI NW of NJ10&NJ53 JCT · Structure no. 1429001

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
563
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Waterloo Drive over Watnong Brook is a concrete culvert carrying Waterloo Drive over Watnong Brook in Morris County, New Jersey. It was built in 1980, so it is 45 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 563 vehicles a day, roughly 1% of them trucks, projected to reach 686 by 2043. The structure is 29 ft (8.8 m) long and 49 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWaterloo Drive
CrossesWatnong Brook
Location1.1MI NW of NJ10&NJ53 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.86556, -74.48338
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width49 ft (14.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic563 (2023)
Projected traffic686 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Waterloo Drive over Watnong Brook built?

It was built in 1980, making it 45 years old in 2025.

What condition is Waterloo 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 Waterloo Drive over Watnong Brook carry?

About 563 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Waterloo Drive over Watnong Brook?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 49 ft wide.

Who owns Waterloo Drive over Watnong Brook?

It is owned by the Town or Township Highway Agency.