US Bridges

Mountain AVE-CO527 over US 22

Fair

Somerset County, New Jersey · 2.2 MI East of I-287 JCT · Structure no. 1803152

Built
1961
64 years old, rebuilt 1988
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
228 ft
2 main spans
Daily traffic
10,432
2023 count
Owner
State
State Highway Agency

About this bridge

Mountain AVE-CO527 over US 22 is a steel stringer/multi-beam or girder carrying Mountain AVE-CO527 over US 22 in Somerset County, New Jersey. It was built in 1961 and reconstructed in 1988, so it is 64 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 5 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 10,432 vehicles a day, roughly 4% of them trucks, projected to reach 12,519 by 2043. The structure is 228 ft (69.5 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMountain AVE-CO527
CrossesUS 22
Location2.2 MI East of I-287 JCT
RouteCounty Highway 527
CountySomerset County
StateNew Jersey
Coordinates40.57892, -74.52596
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length228 ft (69.5 m)
Longest span117 ft (35.7 m)
Deck width60 ft (18.4 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,432 (2023)
Projected traffic12,519 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mountain AVE-CO527 over US 22 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1988.

What condition is Mountain AVE-CO527 over US 22 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 2023.

How much traffic does Mountain AVE-CO527 over US 22 carry?

About 10,432 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Mountain AVE-CO527 over US 22?

The structure is 228 ft (69.5 m) long with a longest span of 117 ft (35.7 m) and a deck 60 ft wide.

Who owns Mountain AVE-CO527 over US 22?

It is owned by the State Highway Agency.