US Bridges

Greenwood Lk Tnpk over Monksville Reservoir

Poor

Passaic County, New Jersey · 0.23 Mile.N.Of Beech Road · Structure no. 1600513

Built
1986
39 years old
Condition
Poor
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
112 ft
2 main spans
Daily traffic
14,101
2023 count
Owner
County
County Highway Agency

About this bridge

Greenwood Lk Tnpk over Monksville Reservoir is a prestressed concrete box beam or girders - multiple carrying Greenwood Lk Tnpk over Monksville Reservoir in Passaic County, New Jersey. It was built in 1986, so it is 39 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 14,101 vehicles a day, roughly 4% of them trucks, projected to reach 17,206 by 2043. The structure is 112 ft (34.1 m) long and 48 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesGreenwood Lk Tnpk
CrossesMonksville Reservoir
Location0.23 Mile.N.Of Beech Road
RouteCounty Highway 511
Coordinates41.13878, -74.30495
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length112 ft (34.1 m)
Longest span51 ft (15.5 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,101 (2023)
Projected traffic17,206 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$1.7 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Greenwood Lk Tnpk over Monksville Reservoir built?

It was built in 1986, making it 39 years old in 2025.

What condition is Greenwood Lk Tnpk over Monksville Reservoir in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does Greenwood Lk Tnpk over Monksville Reservoir carry?

About 14,101 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Greenwood Lk Tnpk over Monksville Reservoir?

The structure is 112 ft (34.1 m) long with a longest span of 51 ft (15.5 m) and a deck 48 ft wide.

Who owns Greenwood Lk Tnpk over Monksville Reservoir?

It is owned by the County Highway Agency.