US Bridges

Old Mill Road over Hannabrand Brook

Good

Monmouth County, New Jersey · 1/4 Mile East of Nj 35 · Structure no. 1300W26

Built
1992
33 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
3,108
2023 count
Owner
County
County Highway Agency

About this bridge

Old Mill Road over Hannabrand Brook is a prestressed concrete slab carrying Old Mill Road over Hannabrand Brook in Monmouth County, New Jersey. It was built in 1992, so it is 33 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 3,108 vehicles a day, roughly 3% of them trucks, projected to reach 3,730 by 2043. The structure is 30 ft (9.1 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Mill Road
CrossesHannabrand Brook
Location1/4 Mile East of Nj 35
RouteCity Street 0
Coordinates40.14355, -74.05334
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span26 ft (7.9 m)
Deck width45 ft (13.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,108 (2023)
Projected traffic3,730 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Hannabrand Brook built?

It was built in 1992, making it 33 years old in 2025.

What condition is Old Mill Road over Hannabrand Brook 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 May 2023.

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

About 3,108 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Old Mill Road over Hannabrand Brook?

The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m) and a deck 45 ft wide.

Who owns Old Mill Road over Hannabrand Brook?

It is owned by the County Highway Agency.