US Bridges

CR 510(MENDHAM Rd) over Burnett Brook

Fair

Morris County, New Jersey · .25 MI E JCT Old Mill RD · Structure no. 1400630

Built
1993
32 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
11,686
2023 count
Owner
County
County Highway Agency

About this bridge

CR 510(MENDHAM Rd) over Burnett Brook is a prestressed concrete slab carrying CR 510(MENDHAM Rd) over Burnett Brook in Morris County, New Jersey. It was built in 1993, so it is 32 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 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 11,686 vehicles a day, roughly 4% of them trucks, projected to reach 14,259 by 2043. The structure is 29 ft (8.8 m) long and 53 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 510(MENDHAM Rd)
CrossesBurnett Brook
Location.25 MI E JCT Old Mill RD
RouteCounty Highway 510
CountyMorris County
StateNew Jersey
Coordinates40.77367, -74.63881
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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width53 ft (16.1 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,686 (2023)
Projected traffic14,259 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 510(MENDHAM Rd) over Burnett Brook built?

It was built in 1993, making it 32 years old in 2025.

What condition is CR 510(MENDHAM Rd) over Burnett 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 CR 510(MENDHAM Rd) over Burnett Brook carry?

About 11,686 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is CR 510(MENDHAM Rd) over Burnett Brook?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 53 ft wide.

Who owns CR 510(MENDHAM Rd) over Burnett Brook?

It is owned by the County Highway Agency.