US Bridges

Easton Ave(rt 527) over Mile Run Brook

Fair

Middlesex County, New Jersey · 1.02 MI N.Hamilton CR 514 · Structure no. 123B171

Built
1878
147 years old, rebuilt 2003
Condition
Fair
inspected March 2023
Type
Arch - Deck
Masonry
Length
22 ft
1 main span
Daily traffic
20,708
2023 count
Owner
County
County Highway Agency

About this bridge

Easton Ave(rt 527) over Mile Run Brook is a masonry arch - deck carrying Easton Ave(rt 527) over Mile Run Brook in Middlesex County, New Jersey. It was built in 1878 and reconstructed in 2003, so it is 147 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 20,708 vehicles a day, roughly 4% of them trucks, projected to reach 25,267 by 2043. The structure is 22 ft (6.7 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesEaston Ave(rt 527)
CrossesMile Run Brook
Location1.02 MI N.Hamilton CR 514
RouteCounty Highway 527
CountyMiddlesex County
StateNew Jersey
Coordinates40.50503, -74.46711
Functional classUrban Other Principal 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadH 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width61 ft (18.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,708 (2023)
Projected traffic25,267 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$57,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Easton Ave(rt 527) over Mile Run Brook built?

It was built in 1878, making it 147 years old in 2025. It was reconstructed in 2003.

What condition is Easton Ave(rt 527) over Mile Run 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 March 2023.

How much traffic does Easton Ave(rt 527) over Mile Run Brook carry?

About 20,708 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Easton Ave(rt 527) over Mile Run Brook?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 61 ft wide.

Who owns Easton Ave(rt 527) over Mile Run Brook?

It is owned by the County Highway Agency.