US Bridges

Cross Mountain RD over Alder Creek

Fair

Ulster County, New York · 1.1 MI N of Turnwood · Structure no. 000000003365180

Built
1994
31 years old
Condition
Fair
inspected November 2024
Type
Frame
Concrete
Length
27 ft
1 main span
Daily traffic
134
2021 count
Owner
County
County Highway Agency

About this bridge

Cross Mountain RD over Alder Creek is a concrete frame carrying Cross Mountain RD over Alder Creek in Ulster County, New York. It was built in 1994, so it is 31 years old, younger 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 5 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 134 vehicles a day, roughly 7% of them trucks, projected to reach 188 by 2041. The structure is 27 ft (8.2 m) long and 21 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCross Mountain RD
CrossesAlder Creek
Location1.1 MI N of Turnwood
RouteCounty Highway 0
CountyUlster County
StateNew York
Coordinates42.03801, -74.69939
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134 (2021)
Projected traffic188 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$543,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cross Mountain RD over Alder Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Cross Mountain RD over Alder Creek 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 November 2024.

How much traffic does Cross Mountain RD over Alder Creek carry?

About 134 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Cross Mountain RD over Alder Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 21 ft wide.

Who owns Cross Mountain RD over Alder Creek?

It is owned by the County Highway Agency.