US Bridges

Old Mill Road over Green Brook

Fair

Essex County, New Jersey · 60 South of CR 628 · Structure no. 0700073

Built
1910
115 years old
Condition
Fair
inspected August 2024
Type
Arch - Deck
Masonry
Length
29 ft
1 main span
Daily traffic
647
2022 count
Owner
County
County Highway Agency

About this bridge

Old Mill Road over Green Brook is a masonry arch - deck carrying Old Mill Road over Green Brook in Essex County, New Jersey. It was built in 1910, so it is 115 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 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 647 vehicles a day, roughly 1% of them trucks, projected to reach 790 by 2042. The structure is 29 ft (8.8 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld Mill Road
CrossesGreen Brook
Location60 South of CR 628
RouteCity Street 0
CountyEssex County
StateNew Jersey
Coordinates40.87079, -74.27238
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic647 (2022)
Projected traffic790 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Mill Road over Green Brook built?

It was built in 1910, making it 115 years old in 2025.

What condition is Old Mill Road over Green Brook 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 August 2024.

How much traffic does Old Mill Road over Green Brook carry?

About 647 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Old Mill Road over Green Brook?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns Old Mill Road over Green Brook?

It is owned by the County Highway Agency.