US Bridges

RTE 30 over Platte Kill

Fair

Delaware County, New York · 2.3 MI SW Margaretville · Structure no. 000000001020820

Built
1969
56 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
2 main spans
Daily traffic
502
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 30 over Platte Kill is a steel stringer/multi-beam or girder carrying RTE 30 over Platte Kill in Delaware County, New York. It was built in 1969, so it is 56 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 502 vehicles a day, roughly 13% of them trucks, projected to reach 505 by 2041. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRTE 30
CrossesPlatte Kill
Location2.3 MI SW Margaretville
RouteState Highway 30
CountyDelaware County
StateNew York
Coordinates42.12817, -74.69456
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span57 ft (17.3 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic502 (2020)
Projected traffic505 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$1.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 30 over Platte Kill built?

It was built in 1969, making it 56 years old in 2025.

What condition is RTE 30 over Platte Kill 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 30 over Platte Kill carry?

About 502 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is RTE 30 over Platte Kill?

The structure is 122 ft (37.2 m) long with a longest span of 57 ft (17.3 m) and a deck 31 ft wide.

Who owns RTE 30 over Platte Kill?

It is owned by the State Highway Agency.