US Bridges

County Road 9 over Middle Brook

Good

Delaware County, New York · .2 MI E Town of Davenport · Structure no. 000000003352130

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
827
2016 count
Owner
County
County Highway Agency

About this bridge

County Road 9 over Middle Brook is a prestressed concrete box beam or girders - multiple carrying County Road 9 over Middle Brook in Delaware County, New York. It was built in 1992, so it is 33 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 827 vehicles a day, roughly 11% of them trucks, projected to reach 1,158 by 2036. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 9
CrossesMiddle Brook
Location.2 MI E Town of Davenport
RouteCounty Highway 0
Coordinates42.47986, -74.81699
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
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 alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length55 ft (16.8 m)
Longest span53 ft (16.1 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic827 (2016)
Projected traffic1,158 by 2036
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$921,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 9 over Middle Brook built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road 9 over Middle Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does County Road 9 over Middle Brook carry?

About 827 vehicles per day (2016 count), of which roughly 11% are trucks.

How long is County Road 9 over Middle Brook?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.1 m) and a deck 24 ft wide.

Who owns County Road 9 over Middle Brook?

It is owned by the County Highway Agency.