US Bridges

Lake Valley Road over Whippany River

Fair

Morris County, New Jersey · 1MI NW of US202&CR617 JCT · Structure no. 1400800

Built
1900
125 years old, rebuilt 2004
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
3,848
2023 count
Owner
County
County Highway Agency

About this bridge

Lake Valley Road over Whippany River is a prestressed concrete box beam or girders - multiple carrying Lake Valley Road over Whippany River in Morris County, New Jersey. It was built in 1900 and reconstructed in 2004, 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 3,848 vehicles a day, roughly 1% of them trucks, projected to reach 4,695 by 2043. The structure is 30 ft (9.1 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLake Valley Road
CrossesWhippany River
Location1MI NW of US202&CR617 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.8125, -74.4972
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span27 ft (8.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,848 (2023)
Projected traffic4,695 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake Valley Road over Whippany River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2004.

What condition is Lake Valley Road over Whippany 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 Lake Valley Road over Whippany River carry?

About 3,848 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Lake Valley Road over Whippany River?

The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 31 ft wide.

Who owns Lake Valley Road over Whippany River?

It is owned by the County Highway Agency.