US Bridges

ST 23 Monterey RD over Water Tom Palmer Brook

Fair

Berkshire County, Massachusetts · 150 E. of E. Mountain RD · Structure no. G110300C9DOTNBI

Built
1950
75 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
6,207
2023 count
Owner
State
State Highway Agency

About this bridge

ST 23 Monterey RD over Water Tom Palmer Brook is a concrete culvert carrying ST 23 Monterey RD over Water Tom Palmer Brook in Berkshire 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 5 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 6,207 vehicles a day, roughly 9% of them trucks, projected to reach 11,055 by 2032. The structure is 32 ft (9.7 m) long and 50 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesST 23 Monterey RD
CrossesWater Tom Palmer Brook
Location150 E. of E. Mountain RD
RouteState Highway 23
CountyBerkshire County
StateMassachusetts
Coordinates42.19157, -73.33099
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating31.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length32 ft (9.7 m)
Longest span32 ft (9.7 m)
Deck width50 ft (15.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,207 (2023)
Projected traffic11,055 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 23 Monterey RD over Water Tom Palmer Brook built?

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

What condition is ST 23 Monterey RD over Water Tom Palmer 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 23 Monterey RD over Water Tom Palmer Brook carry?

About 6,207 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is ST 23 Monterey RD over Water Tom Palmer Brook?

The structure is 32 ft (9.7 m) long with a longest span of 32 ft (9.7 m) and a deck 50 ft wide.

Who owns ST 23 Monterey RD over Water Tom Palmer Brook?

It is owned by the State Highway Agency.