US Bridges

RTE 40 over Deepkill Creek

Fair

Rensselaer County, New York · 3.5 MI N JCT Rts 142 & 40 · Structure no. 000000001024680

Built
1934
91 years old
Condition
Fair
inspected August 2024
Type
Arch - Deck
Concrete
Length
35 ft
1 main span
Daily traffic
9,527
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 40 over Deepkill Creek is a concrete arch - deck carrying RTE 40 over Deepkill Creek in Rensselaer County, New York. It was built in 1934, so it is 91 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 9,527 vehicles a day, roughly 9% of them trucks, projected to reach 10,160 by 2041. The structure is 35 ft (10.7 m) long and 78 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRTE 40
CrossesDeepkill Creek
Location3.5 MI N JCT Rts 142 & 40
RouteState Highway 40
CountyRensselaer County
StateNew York
Coordinates42.83097, -73.62614
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.1 US tons
Inventory rating27 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span34 ft (10.3 m)
Deck width78 ft (23.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,527 (2020)
Projected traffic10,160 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 40 over Deepkill Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is RTE 40 over Deepkill 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 August 2024.

How much traffic does RTE 40 over Deepkill Creek carry?

About 9,527 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is RTE 40 over Deepkill Creek?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.3 m) and a deck 78 ft wide.

Who owns RTE 40 over Deepkill Creek?

It is owned by the State Highway Agency.