US Bridges

Mill Street over Second River

Good

Essex County, New Jersey · 0.49 Miles North of CR645 · Structure no. 0700060

Built
1942
83 years old, rebuilt 2018
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
5,837
2022 count
Owner
County
County Highway Agency

About this bridge

Mill Street over Second River is a steel stringer/multi-beam or girder carrying Mill Street over Second River in Essex County, New Jersey. It was built in 1942 and reconstructed in 2018, so it is 83 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 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 5,837 vehicles a day, roughly 3% of them trucks, projected to reach 7,123 by 2042. The structure is 40 ft (12.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMill Street
CrossesSecond River
Location0.49 Miles North of CR645
RouteCity Street 0
Coordinates40.79297, -74.17979
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating106.8 US tons
Inventory rating99.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width50 ft (15.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,837 (2022)
Projected traffic7,123 by 2042
Trucks3%
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$120,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Street over Second River built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 2018.

What condition is Mill Street over Second River 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 July 2024.

How much traffic does Mill Street over Second River carry?

About 5,837 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Mill Street over Second River?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 50 ft wide.

Who owns Mill Street over Second River?

It is owned by the County Highway Agency.