US Bridges

Mountain House Rd. over East Branch Rahway River

Fair

Essex County, New Jersey · 150 E. of Meadowbrook LN · Structure no. 0700052

Built
1972
53 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
2,131
2024 count
Owner
County
County Highway Agency

About this bridge

Mountain House Rd. over East Branch Rahway River is a steel stringer/multi-beam or girder carrying Mountain House Rd. over East Branch Rahway River in Essex County, New Jersey. It was built in 1972, so it is 53 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 2,131 vehicles a day, roughly 1% of them trucks, projected to reach 2,557 by 2044. The structure is 38 ft (11.6 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMountain House Rd.
CrossesEast Branch Rahway River
Location150 E. of Meadowbrook LN
RouteCity Street 0
CountyEssex County
StateNew Jersey
Coordinates40.75535, -74.25642
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span33 ft (10.1 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,131 (2024)
Projected traffic2,557 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mountain House Rd. over East Branch Rahway River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Mountain House Rd. over East Branch Rahway River 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 July 2024.

How much traffic does Mountain House Rd. over East Branch Rahway River carry?

About 2,131 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Mountain House Rd. over East Branch Rahway River?

The structure is 38 ft (11.6 m) long with a longest span of 33 ft (10.1 m) and a deck 60 ft wide.

Who owns Mountain House Rd. over East Branch Rahway River?

It is owned by the County Highway Agency.