US Bridges

ST 9 Usmc Lge HWY over Water Stones Brook

Fair

Hampshire County, Massachusetts · 100 E JCT Spruce Cor Rd. · Structure no. G060010JPDOTNBI

Built
1950
75 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
5,458
2016 count
Owner
State
State Highway Agency

About this bridge

ST 9 Usmc Lge HWY over Water Stones Brook is a steel stringer/multi-beam or girder carrying ST 9 Usmc Lge HWY over Water Stones Brook in Hampshire County, Massachusetts. It was built in 1950, so it is 75 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 5,458 vehicles a day, roughly 10% of them trucks, projected to reach 4,422 by 2032. The structure is 70 ft (21.3 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesST 9 Usmc Lge HWY
CrossesWater Stones Brook
Location100 E JCT Spruce Cor Rd.
RouteState Highway 9
CountyHampshire County
StateMassachusetts
Coordinates42.45589, -72.83394
Functional classRural Principal Arterial - Other

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length70 ft (21.3 m)
Longest span59 ft (18 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,458 (2016)
Projected traffic4,422 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 9 Usmc Lge HWY over Water Stones Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is ST 9 Usmc Lge HWY over Water Stones 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 November 2023.

How much traffic does ST 9 Usmc Lge HWY over Water Stones Brook carry?

About 5,458 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is ST 9 Usmc Lge HWY over Water Stones Brook?

The structure is 70 ft (21.3 m) long with a longest span of 59 ft (18 m) and a deck 47 ft wide.

Who owns ST 9 Usmc Lge HWY over Water Stones Brook?

It is owned by the State Highway Agency.