US Bridges

RTE 9 over Doodletown Brook

Poor

Rockland County, New York · 1.6 MI S JCT B Mtn Circle · Structure no. 000000001079840

Built
1929
96 years old
Condition
Poor
inspected July 2023
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
3,915
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 9 over Doodletown Brook is a concrete slab carrying RTE 9 over Doodletown Brook in Rockland County, New York. It was built in 1929, so it is 96 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,915 vehicles a day, roughly 10% of them trucks, projected to reach 3,933 by 2041. The structure is 21 ft (6.4 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 9
CrossesDoodletown Brook
Location1.6 MI S JCT B Mtn Circle
RouteU.S. Route 9
Coordinates41.30101, -73.98608
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.3 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,915 (2021)
Projected traffic3,933 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$376,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 9 over Doodletown Brook built?

It was built in 1929, making it 96 years old in 2025.

What condition is RTE 9 over Doodletown Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does RTE 9 over Doodletown Brook carry?

About 3,915 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is RTE 9 over Doodletown Brook?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns RTE 9 over Doodletown Brook?

It is owned by the State Highway Agency.