US Bridges

CR 603 Diamond Spr over Trib to Rockaway River

Fair

Morris County, New Jersey · 1.2MI NE of I287&US46 JCT · Structure no. 1400355

Built
1900
125 years old, rebuilt 1998
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
14,084
2023 count
Owner
County
County Highway Agency

About this bridge

CR 603 Diamond Spr over Trib to Rockaway River is a prestressed concrete box beam or girders - multiple carrying CR 603 Diamond Spr over Trib to Rockaway River in Morris County, New Jersey. It was built in 1900 and reconstructed in 1998, so it is 125 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 14,084 vehicles a day, roughly 4% of them trucks, projected to reach 17,184 by 2043. The structure is 26 ft (7.9 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 603 Diamond Spr
CrossesTrib to Rockaway River
Location1.2MI NE of I287&US46 JCT
RouteCounty Highway 603
Coordinates40.9049, -74.46393
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating65 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width44 ft (13.4 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,084 (2023)
Projected traffic17,184 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 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 CR 603 Diamond Spr over Trib to Rockaway River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1998.

What condition is CR 603 Diamond Spr over Trib to Rockaway 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 July 2023.

How much traffic does CR 603 Diamond Spr over Trib to Rockaway River carry?

About 14,084 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is CR 603 Diamond Spr over Trib to Rockaway River?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 44 ft wide.

Who owns CR 603 Diamond Spr over Trib to Rockaway River?

It is owned by the County Highway Agency.