US Bridges

ST 10 Northmptn ST over Water Manhan River

Fair

Hampshire County, Massachusetts · 1.3 M S Easthampton T.L. · Structure no. E050060V0DOTNBI

Built
1951
74 years old, rebuilt 2013
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
31,100
2019 count
Owner
State
State Highway Agency

About this bridge

ST 10 Northmptn ST over Water Manhan River is a prestressed concrete stringer/multi-beam or girder carrying ST 10 Northmptn ST over Water Manhan River in Hampshire County, Massachusetts. It was built in 1951 and reconstructed in 2013, so it is 74 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 31,100 vehicles a day, roughly 3% of them trucks, projected to reach 35,439 by 2031. The structure is 98 ft (29.8 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesST 10 Northmptn ST
CrossesWater Manhan River
Location1.3 M S Easthampton T.L.
RouteState Highway 10
CountyHampshire County
StateMassachusetts
Coordinates42.27396, -72.67301
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length98 ft (29.8 m)
Longest span93 ft (28.3 m)
Deck width44 ft (13.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,100 (2019)
Projected traffic35,439 by 2031
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 10 Northmptn ST over Water Manhan River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2013.

What condition is ST 10 Northmptn ST over Water Manhan River 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 October 2023.

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

About 31,100 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is ST 10 Northmptn ST over Water Manhan River?

The structure is 98 ft (29.8 m) long with a longest span of 93 ft (28.3 m) and a deck 44 ft wide.

Who owns ST 10 Northmptn ST over Water Manhan River?

It is owned by the State Highway Agency.