US Bridges

RTE I84 over Hosner Mountain Road

Poor

Dutchess County, New York · .9 MI E JCT I84 & Tsp · Structure no. 000000001052351

Built
1968
57 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
124 ft
1 main span
Daily traffic
26,344
2009 count
Owner
State
State Highway Agency

About this bridge

RTE I84 over Hosner Mountain Road is a steel stringer/multi-beam or girder carrying RTE I84 over Hosner Mountain Road in Dutchess County, New York. It was built in 1968, so it is 57 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 26,344 vehicles a day, roughly 15% of them trucks. The structure is 124 ft (37.8 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRTE I84
CrossesHosner Mountain Road
Location.9 MI E JCT I84 & Tsp
RouteInterstate 84
CountyDutchess County
StateNew York
Coordinates41.5435, -73.75453
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span119 ft (36.2 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,344 (2009)
Projected traffic—
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$4.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I84 over Hosner Mountain Road built?

It was built in 1968, making it 57 years old in 2025.

What condition is RTE I84 over Hosner Mountain Road in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does RTE I84 over Hosner Mountain Road carry?

About 26,344 vehicles per day (2009 count), of which roughly 15% are trucks.

How long is RTE I84 over Hosner Mountain Road?

The structure is 124 ft (37.8 m) long with a longest span of 119 ft (36.2 m) and a deck 42 ft wide.

Who owns RTE I84 over Hosner Mountain Road?

It is owned by the State Highway Agency.