US Bridges

ST 10 College HWY over Water Manhan River

Good

Hampshire County, Massachusetts · .8 M S Southhampton T.L. · Structure no. S190120V5DOTNBI

Built
1986
39 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
10,730
2023 count
Owner
State
State Highway Agency

About this bridge

ST 10 College HWY over Water Manhan River is a prestressed concrete box beam or girders - multiple carrying ST 10 College HWY over Water Manhan River in Hampshire County, Massachusetts. It was built in 1986, so it is 39 years old, younger than the Massachusetts average of 63.8 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 10,730 vehicles a day, roughly 11% of them trucks, projected to reach 18,478 by 2031. The structure is 82 ft (24.9 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST 10 College HWY
CrossesWater Manhan River
Location.8 M S Southhampton T.L.
RouteState Highway 10
Coordinates42.24708, -72.70631
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating77.8 US tons
Inventory rating52.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length82 ft (24.9 m)
Longest span80 ft (24.4 m)
Deck width52 ft (16 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,730 (2023)
Projected traffic18,478 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$196,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 10 College HWY over Water Manhan River built?

It was built in 1986, making it 39 years old in 2025.

What condition is ST 10 College HWY over Water Manhan River 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 September 2024.

How much traffic does ST 10 College HWY over Water Manhan River carry?

About 10,730 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is ST 10 College HWY over Water Manhan River?

The structure is 82 ft (24.9 m) long with a longest span of 80 ft (24.4 m) and a deck 52 ft wide.

Who owns ST 10 College HWY over Water Manhan River?

It is owned by the State Highway Agency.