US Bridges

ST143 Old North RD over Water Trout Brook

Poor

Hampshire County, Massachusetts · 600 S of River Rd. Int. · Structure no. W450100CTDOTNBI

Built
1924
101 years old, rebuilt 1995
Condition
Poor
inspected November 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
550
2015 count
Owner
State
State Highway Agency

About this bridge

ST143 Old North RD over Water Trout Brook is a prestressed concrete slab carrying ST143 Old North RD over Water Trout Brook in Hampshire County, Massachusetts. It was built in 1924 and reconstructed in 1995, so it is 101 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 550 vehicles a day, roughly 11% of them trucks, projected to reach 932 by 2031. The structure is 28 ft (8.5 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesST143 Old North RD
CrossesWater Trout Brook
Location600 S of River Rd. Int.
RouteState Highway 143
Coordinates42.42251, -72.98843
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2015)
Projected traffic932 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$808,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST143 Old North RD over Water Trout Brook built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1995.

What condition is ST143 Old North RD over Water Trout Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does ST143 Old North RD over Water Trout Brook carry?

About 550 vehicles per day (2015 count), of which roughly 11% are trucks.

How long is ST143 Old North RD over Water Trout Brook?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns ST143 Old North RD over Water Trout Brook?

It is owned by the State Highway Agency.