US Bridges

Griffin Road over Mill Brook

Good

Chenango County, New York · 0.2M N ST RTE 220 · Structure no. 000000003350930

Built
2015
10 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
41
2019 count
Owner
County
County Highway Agency

About this bridge

Griffin Road over Mill Brook is a prestressed concrete box beam or girders - multiple carrying Griffin Road over Mill Brook in Chenango County, New York. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 41 vehicles a day, roughly 24% of them trucks, projected to reach 57 by 2039. The structure is 60 ft (18.4 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesGriffin Road
CrossesMill Brook
Location0.2M N ST RTE 220
Coordinates42.47567, -75.64406
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.4 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length60 ft (18.4 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2019)
Projected traffic57 by 2039
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$637,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Griffin Road over Mill Brook built?

It was built in 2015, making it 10 years old in 2025.

What condition is Griffin Road over Mill 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 July 2023.

How much traffic does Griffin Road over Mill Brook carry?

About 41 vehicles per day (2019 count), of which roughly 24% are trucks.

How long is Griffin Road over Mill Brook?

The structure is 60 ft (18.4 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Griffin Road over Mill Brook?

It is owned by the County Highway Agency.