US Bridges

RTE 84 over Mnrr Beacon Line

Good

Dutchess County, New York · 1.2 MI W JCT I84 & US 9 · Structure no. 000000001032480

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
1 main span
Daily traffic
52,529
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 84 over Mnrr Beacon Line is a steel stringer/multi-beam or girder carrying RTE 84 over Mnrr Beacon Line in Dutchess County, New York. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 52,529 vehicles a day, roughly 15% of them trucks, projected to reach 88,952 by 2041. The structure is 96 ft (29.3 m) long and 148 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRTE 84
CrossesMnrr Beacon Line
Location1.2 MI W JCT I84 & US 9
RouteInterstate 84
CountyDutchess County
StateNew York
Coordinates41.52525, -73.91231
Functional classUrban 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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length96 ft (29.3 m)
Longest span90 ft (27.4 m)
Deck width148 ft (45 m)
Roadway width92 ft (28 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic52,529 (2021)
Projected traffic88,952 by 2041
Trucks15%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
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$17.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 84 over Mnrr Beacon Line built?

It was built in 2018, making it 7 years old in 2025.

What condition is RTE 84 over Mnrr Beacon Line 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 84 over Mnrr Beacon Line carry?

About 52,529 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is RTE 84 over Mnrr Beacon Line?

The structure is 96 ft (29.3 m) long with a longest span of 90 ft (27.4 m) and a deck 148 ft wide.

Who owns RTE 84 over Mnrr Beacon Line?

It is owned by the State Highway Agency.