US Bridges

Smith Road over Troy Brook

Good

Morris County, New Jersey · 0.80MI SE of I80&I287 JCT · Structure no. 1400408

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
4,770
2023 count
Owner
County
County Highway Agency

About this bridge

Smith Road over Troy Brook is a concrete culvert carrying Smith Road over Troy Brook in Morris County, New Jersey. It was built in 2001, so it is 24 years old, younger than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,770 vehicles a day, roughly 3% of them trucks, projected to reach 5,724 by 2043. The structure is 34 ft (10.4 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSmith Road
CrossesTroy Brook
Location0.80MI SE of I80&I287 JCT
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.855, -74.40827
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating66 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width44 ft (13.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,770 (2023)
Projected traffic5,724 by 2043
Trucks3%
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 Smith Road over Troy Brook built?

It was built in 2001, making it 24 years old in 2025.

What condition is Smith Road over Troy Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Smith Road over Troy Brook carry?

About 4,770 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Smith Road over Troy Brook?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 44 ft wide.

Who owns Smith Road over Troy Brook?

It is owned by the County Highway Agency.