US Bridges

Mountain Avenue over Lehigh Vall Ml (conrail)

Good

Middlesex County, New Jersey · 0.74 MI South Nj Route 28 · Structure no. 1253160

Built
1995
30 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
6,187
2024 count
Owner
Unknown
Unknown

About this bridge

Mountain Avenue over Lehigh Vall Ml (conrail) is a steel stringer/multi-beam or girder carrying Mountain Avenue over Lehigh Vall Ml (conrail) in Middlesex County, New Jersey. It was built in 1995, so it is 30 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 6,187 vehicles a day, roughly 3% of them trucks, projected to reach 7,424 by 2044. The structure is 75 ft (22.9 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMountain Avenue
CrossesLehigh Vall Ml (conrail)
Location0.74 MI South Nj Route 28
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.57176, -74.49167
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating96 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length75 ft (22.9 m)
Longest span68 ft (20.7 m)
Deck width41 ft (12.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,187 (2024)
Projected traffic7,424 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mountain Avenue over Lehigh Vall Ml (conrail) built?

It was built in 1995, making it 30 years old in 2025.

What condition is Mountain Avenue over Lehigh Vall Ml (conrail) 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 October 2024.

How much traffic does Mountain Avenue over Lehigh Vall Ml (conrail) carry?

About 6,187 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Mountain Avenue over Lehigh Vall Ml (conrail)?

The structure is 75 ft (22.9 m) long with a longest span of 68 ft (20.7 m) and a deck 41 ft wide.

Who owns Mountain Avenue over Lehigh Vall Ml (conrail)?

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