US Bridges

RTE 9G over RTE 308

Fair

Dutchess County, New York · JCT Rts 9G+308 · Structure no. 000000001006430

Built
1938
87 years old, rebuilt 1999
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
11,194
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 9G over RTE 308 is a steel stringer/multi-beam or girder carrying RTE 9G over RTE 308 in Dutchess County, New York. It was built in 1938 and reconstructed in 1999, so it is 87 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 11,194 vehicles a day, roughly 8% of them trucks, projected to reach 11,677 by 2041. The structure is 58 ft (17.7 m) long and 57 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesRTE 9G
CrossesRTE 308
LocationJCT Rts 9G+308
RouteState Highway 9G
CountyDutchess County
StateNew York
Coordinates41.93749, -73.88346
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating66 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span54 ft (16.6 m)
Deck width57 ft (17.5 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,194 (2021)
Projected traffic11,677 by 2041
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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$4.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 9G over RTE 308 built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1999.

What condition is RTE 9G over RTE 308 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 June 2023.

How much traffic does RTE 9G over RTE 308 carry?

About 11,194 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 9G over RTE 308?

The structure is 58 ft (17.7 m) long with a longest span of 54 ft (16.6 m) and a deck 57 ft wide.

Who owns RTE 9G over RTE 308?

It is owned by the State Highway Agency.