US Bridges

Cornwall Hill Road over Muddy Brook

Fair

Putnam County, New York · 1.3 MI NW of Patterson · Structure no. 000000003345480

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
1,057
2017 count
Owner
County
County Highway Agency

About this bridge

Cornwall Hill Road over Muddy Brook is a prestressed concrete box beam or girders - multiple carrying Cornwall Hill Road over Muddy Brook in Putnam County, New York. It was built in 1990, so it is 35 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 1,057 vehicles a day, roughly 3% of them trucks, projected to reach 1,480 by 2037. The structure is 52 ft (15.8 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCornwall Hill Road
CrossesMuddy Brook
Location1.3 MI NW of Patterson
RouteCounty Highway 0
CountyPutnam County
StateNew York
Coordinates41.4942, -73.60698
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.1 US tons
Inventory rating22 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,057 (2017)
Projected traffic1,480 by 2037
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$906,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cornwall Hill Road over Muddy Brook built?

It was built in 1990, making it 35 years old in 2025.

What condition is Cornwall Hill Road over Muddy Brook 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 Cornwall Hill Road over Muddy Brook carry?

About 1,057 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Cornwall Hill Road over Muddy Brook?

The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns Cornwall Hill Road over Muddy Brook?

It is owned by the County Highway Agency.