US Bridges

ST 9 Belchertn RD over Water Flat Brook

Fair

Hampshire County, Massachusetts · 100 E JCT Doane Rd. · Structure no. W050220UYDOTNBI

Built
1956
69 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
6,898
2015 count
Owner
State
State Highway Agency

About this bridge

ST 9 Belchertn RD over Water Flat Brook is a concrete slab carrying ST 9 Belchertn RD over Water Flat Brook in Hampshire County, Massachusetts. It was built in 1956, so it is 69 years old, older than the Massachusetts average of 63.8 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 6,898 vehicles a day, roughly 10% of them trucks, projected to reach 10,212 by 2032. The structure is 24 ft (7.3 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesST 9 Belchertn RD
CrossesWater Flat Brook
Location100 E JCT Doane Rd.
RouteState Highway 9
CountyHampshire County
StateMassachusetts
Coordinates42.26347, -72.27294
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,898 (2015)
Projected traffic10,212 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$226,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 9 Belchertn RD over Water Flat Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is ST 9 Belchertn RD over Water Flat 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 August 2023.

How much traffic does ST 9 Belchertn RD over Water Flat Brook carry?

About 6,898 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is ST 9 Belchertn RD over Water Flat Brook?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 49 ft wide.

Who owns ST 9 Belchertn RD over Water Flat Brook?

It is owned by the State Highway Agency.