US Bridges

Nj 183 over Musconetcong Lake Outlet

Fair

Morris County, New Jersey · 0.40 MI North of US 46 · Structure no. 1426151

Built
1926
99 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
20,463
2023 count
Owner
State
State Highway Agency

About this bridge

Nj 183 over Musconetcong Lake Outlet is a concrete tee beam carrying Nj 183 over Musconetcong Lake Outlet in Morris County, New Jersey. It was built in 1926, so it is 99 years old, older 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 5 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 20,463 vehicles a day, roughly 4% of them trucks, projected to reach 24,969 by 2043. The structure is 28 ft (8.5 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNj 183
CrossesMusconetcong Lake Outlet
Location0.40 MI North of US 46
RouteState Highway 183
CountyMorris County
StateNew Jersey
Coordinates40.90185, -74.70479
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width63 ft (19.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,463 (2023)
Projected traffic24,969 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 183 over Musconetcong Lake Outlet built?

It was built in 1926, making it 99 years old in 2025.

What condition is Nj 183 over Musconetcong Lake Outlet 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 March 2023.

How much traffic does Nj 183 over Musconetcong Lake Outlet carry?

About 20,463 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj 183 over Musconetcong Lake Outlet?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 63 ft wide.

Who owns Nj 183 over Musconetcong Lake Outlet?

It is owned by the State Highway Agency.