US Bridges

Brooklake Road over Spring Garden Brook

Fair

Morris County, New Jersey · 1.7MI NW NJ24&NJ124 JCT · Structure no. 1400467

Built
1928
97 years old, rebuilt 1977
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
6,219
2023 count
Owner
County
County Highway Agency

About this bridge

Brooklake Road over Spring Garden Brook is a steel stringer/multi-beam or girder carrying Brooklake Road over Spring Garden Brook in Morris County, New Jersey. It was built in 1928 and reconstructed in 1977, so it is 97 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 6,219 vehicles a day, roughly 1% of them trucks, projected to reach 7,579 by 2043. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBrooklake Road
CrossesSpring Garden Brook
Location1.7MI NW NJ24&NJ124 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.76323, -74.37852
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,219 (2023)
Projected traffic7,579 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$345,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Brooklake Road over Spring Garden Brook built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1977.

What condition is Brooklake Road over Spring Garden 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 July 2023.

How much traffic does Brooklake Road over Spring Garden Brook carry?

About 6,219 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Brooklake Road over Spring Garden Brook?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns Brooklake Road over Spring Garden Brook?

It is owned by the County Highway Agency.