US Bridges

CR 603 (wdtwn Rd) over Alloways Creek

Fair

Salem County, New Jersey · 5.0 Mi. South of Nj 45 · Structure no. 1701097

Built
1941
84 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
2,104
2023 count
Owner
County
County Highway Agency

About this bridge

CR 603 (wdtwn Rd) over Alloways Creek is a steel stringer/multi-beam or girder carrying CR 603 (wdtwn Rd) over Alloways Creek in Salem County, New Jersey. It was built in 1941, so it is 84 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 2,104 vehicles a day, roughly 3% of them trucks, projected to reach 2,568 by 2043. The structure is 29 ft (8.8 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 603 (wdtwn Rd)
CrossesAlloways Creek
Location5.0 Mi. South of Nj 45
RouteCounty Highway 603
CountySalem County
StateNew Jersey
Coordinates39.5777, -75.34597
Functional classRural Major Collector

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.
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,104 (2023)
Projected traffic2,568 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 603 (wdtwn Rd) over Alloways Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is CR 603 (wdtwn Rd) over Alloways Creek 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 CR 603 (wdtwn Rd) over Alloways Creek carry?

About 2,104 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 603 (wdtwn Rd) over Alloways Creek?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns CR 603 (wdtwn Rd) over Alloways Creek?

It is owned by the County Highway Agency.