US Bridges

Plank Road over Mill Brook

Good

Essex County, New York · In Moriah Center · Structure no. 000000003301800

Built
2014
11 years old
Condition
Good
inspected June 2024
Type
Arch - Deck
Concrete
Length
33 ft
1 main span
Daily traffic
4,297
2018 count
Owner
County
County Highway Agency

About this bridge

Plank Road over Mill Brook is a concrete arch - deck carrying Plank Road over Mill Brook in Essex County, New York. It was built in 2014, so it is 11 years old, younger than the New York average of 53 years.

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

It carries about 4,297 vehicles a day, roughly 5% of them trucks, projected to reach 4,482 by 2041. The structure is 33 ft (10.1 m) long and 39 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesPlank Road
CrossesMill Brook
LocationIn Moriah Center
RouteCounty Highway 0
Coordinates44.06143, -73.51001
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.6 US tons
Inventory rating45 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,297 (2018)
Projected traffic4,482 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 with deck rehabilitation or replacement
Estimated improvement cost$808,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Plank Road over Mill Brook built?

It was built in 2014, making it 11 years old in 2025.

What condition is Plank Road over Mill 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 June 2024.

How much traffic does Plank Road over Mill Brook carry?

About 4,297 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Plank Road over Mill Brook?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 39 ft wide.

Who owns Plank Road over Mill Brook?

It is owned by the County Highway Agency.