US Bridges

Alexander Road over Little Bear Brook

Fair

Mercer County, New Jersey · 0.8 Mile South of US 1 · Structure no. 1107612

Built
1982
43 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
15,760
2023 count
Owner
County
County Highway Agency

About this bridge

Alexander Road over Little Bear Brook is a concrete culvert carrying Alexander Road over Little Bear Brook in Mercer County, New Jersey. It was built in 1982, so it is 43 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 15,760 vehicles a day, roughly 4% of them trucks, projected to reach 19,230 by 2043. The structure is 20 ft (6.1 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAlexander Road
CrossesLittle Bear Brook
Location0.8 Mile South of US 1
RouteCity Street 0
CountyMercer County
StateNew Jersey
Coordinates40.31821, -74.63348
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width76 ft (23.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,760 (2023)
Projected traffic19,230 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Alexander Road over Little Bear Brook built?

It was built in 1982, making it 43 years old in 2025.

What condition is Alexander Road over Little Bear 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 Alexander Road over Little Bear Brook carry?

About 15,760 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Alexander Road over Little Bear Brook?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 76 ft wide.

Who owns Alexander Road over Little Bear Brook?

It is owned by the County Highway Agency.