US Bridges

Main ST (cr 606) over Mill Pond

Fair

Middlesex County, New Jersey · 0.06 Miles W. of Ford Ave · Structure no. 123B133

Built
1996
29 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
15,258
2023 count
Owner
County
County Highway Agency

About this bridge

Main ST (cr 606) over Mill Pond is a prestressed concrete box beam or girders - multiple carrying Main ST (cr 606) over Mill Pond in Middlesex County, New Jersey. It was built in 1996, so it is 29 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 15,258 vehicles a day, roughly 4% of them trucks, projected to reach 18,618 by 2043. The structure is 179 ft (54.6 m) long and 56 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMain ST (cr 606)
CrossesMill Pond
Location0.06 Miles W. of Ford Ave
RouteCounty Highway 606
CountyMiddlesex County
StateNew Jersey
Coordinates40.45122, -74.43731
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length179 ft (54.6 m)
Longest span57 ft (17.4 m)
Deck width56 ft (17.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,258 (2023)
Projected traffic18,618 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Main ST (cr 606) over Mill Pond built?

It was built in 1996, making it 29 years old in 2025.

What condition is Main ST (cr 606) over Mill Pond 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 April 2023.

How much traffic does Main ST (cr 606) over Mill Pond carry?

About 15,258 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Main ST (cr 606) over Mill Pond?

The structure is 179 ft (54.6 m) long with a longest span of 57 ft (17.4 m) and a deck 56 ft wide.

Who owns Main ST (cr 606) over Mill Pond?

It is owned by the County Highway Agency.