US Bridges

Red Mill Road over Saddle River

Fair

Bergen County, New Jersey · 500 Feet South of Route 4 · Structure no. 020017A

Built
1922
103 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Concrete
Length
78 ft
1 main span
Daily traffic
18,844
2024 count
Owner
County
County Highway Agency

About this bridge

Red Mill Road over Saddle River is a concrete arch - deck carrying Red Mill Road over Saddle River in Bergen County, New Jersey. It was built in 1922, so it is 103 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 18,844 vehicles a day, roughly 4% of them trucks, projected to reach 22,993 by 2044. The structure is 78 ft (23.8 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRed Mill Road
CrossesSaddle River
Location500 Feet South of Route 4
RouteCity Street 0
Coordinates40.92469, -74.09034
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length78 ft (23.8 m)
Longest span70 ft (21.3 m)
Deck width47 ft (14.2 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,844 (2024)
Projected traffic22,993 by 2044
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$640,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Red Mill Road over Saddle River built?

It was built in 1922, making it 103 years old in 2025.

What condition is Red Mill Road over Saddle River 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 2024.

How much traffic does Red Mill Road over Saddle River carry?

About 18,844 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Red Mill Road over Saddle River?

The structure is 78 ft (23.8 m) long with a longest span of 70 ft (21.3 m) and a deck 47 ft wide.

Who owns Red Mill Road over Saddle River?

It is owned by the County Highway Agency.