US Bridges

Maple Street over Morristownline(mp 20.18)

Fair

Union County, New Jersey · 0.49 N of CR 512 · Structure no. 2062154

Built
1903
122 years old, rebuilt 1993
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
11,600
2023 count
Owner
Unknown
Unknown

About this bridge

Maple Street over Morristownline(mp 20.18) is a prestressed concrete slab carrying Maple Street over Morristownline(mp 20.18) in Union County, New Jersey. It was built in 1903 and reconstructed in 1993, so it is 122 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 11,600 vehicles a day, roughly 3% of them trucks, projected to reach 13,920 by 2043. The structure is 53 ft (16.2 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMaple Street
CrossesMorristownline(mp 20.18)
Location0.49 N of CR 512
RouteCity Street 0
CountyUnion County
StateNew Jersey
Coordinates40.71677, -74.35906
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length53 ft (16.2 m)
Longest span49 ft (14.9 m)
Deck width46 ft (13.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,600 (2023)
Projected traffic13,920 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byOther State Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$8 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Maple Street over Morristownline(mp 20.18) built?

It was built in 1903, making it 122 years old in 2025. It was reconstructed in 1993.

What condition is Maple Street over Morristownline(mp 20.18) 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 April 2023.

How much traffic does Maple Street over Morristownline(mp 20.18) carry?

About 11,600 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Maple Street over Morristownline(mp 20.18)?

The structure is 53 ft (16.2 m) long with a longest span of 49 ft (14.9 m) and a deck 46 ft wide.

Who owns Maple Street over Morristownline(mp 20.18)?

It is owned by the Unknown and maintained by the Other State Agency.