US Bridges

RTE I87 over RTE 74 Platt Brook

Good

Essex County, New York · I87 Exit 28 · Structure no. 000000001033691

Built
1965
60 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
228 ft
2 main spans
Daily traffic
4,498
2015 count
Owner
State
State Highway Agency

About this bridge

RTE I87 over RTE 74 Platt Brook is a steel stringer/multi-beam or girder carrying RTE I87 over RTE 74 Platt Brook in Essex County, New York. It was built in 1965, so it is 60 years old, older 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 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 4,498 vehicles a day, roughly 28% of them trucks. The structure is 228 ft (69.5 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesRTE I87
CrossesRTE 74 Platt Brook
LocationI87 Exit 28
RouteInterstate 87
CountyEssex County
StateNew York
Coordinates43.87119, -73.75438
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length228 ft (69.5 m)
Longest span111 ft (33.8 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,498 (2015)
Projected traffic—
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I87 over RTE 74 Platt Brook built?

It was built in 1965, making it 60 years old in 2025.

What condition is RTE I87 over RTE 74 Platt 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 RTE I87 over RTE 74 Platt Brook carry?

About 4,498 vehicles per day (2015 count), of which roughly 28% are trucks.

How long is RTE I87 over RTE 74 Platt Brook?

The structure is 228 ft (69.5 m) long with a longest span of 111 ft (33.8 m) and a deck 33 ft wide.

Who owns RTE I87 over RTE 74 Platt Brook?

It is owned by the State Highway Agency.