US Bridges

RTE 987G over County Road 21

Fair

Dutchess County, New York · 1.4 MI NW of Arthursburg · Structure no. 000000005502379

Built
1937
88 years old
Condition
Fair
inspected February 2023
Type
Frame
Concrete
Length
43 ft
1 main span
Daily traffic
18,211
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 987G over County Road 21 is a concrete frame carrying RTE 987G over County Road 21 in Dutchess County, New York. It was built in 1937, so it is 88 years old, older than the New York average of 53 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 18,211 vehicles a day, projected to reach 25,690 by 2041. The structure is 43 ft (13.1 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRTE 987G
CrossesCounty Road 21
Location1.4 MI NW of Arthursburg
RouteState Highway 987G
CountyDutchess County
StateNew York
Coordinates41.64434, -73.78801
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating25.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length43 ft (13.1 m)
Longest span39 ft (11.8 m)
Deck width54 ft (16.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic18,211 (2020)
Projected traffic25,690 by 2041
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 987G over County Road 21 built?

It was built in 1937, making it 88 years old in 2025.

What condition is RTE 987G over County Road 21 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 February 2023.

How much traffic does RTE 987G over County Road 21 carry?

About 18,211 vehicles per day (2020 count).

How long is RTE 987G over County Road 21?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.8 m) and a deck 54 ft wide.

Who owns RTE 987G over County Road 21?

It is owned by the State Highway Agency.