US Bridges

ST183 Interlakn RD over Water Larrywaug Brook

Good

Berkshire County, Massachusetts · 500 N of Int W/ RTE 102 · Structure no. S26008C57MUNNBI

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Frame
Concrete
Length
43 ft
1 main span
Daily traffic
3,621
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

ST183 Interlakn RD over Water Larrywaug Brook is a concrete frame carrying ST183 Interlakn RD over Water Larrywaug Brook in Berkshire County, Massachusetts. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,621 vehicles a day, roughly 10% of them trucks. The structure is 43 ft (13.1 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesST183 Interlakn RD
CrossesWater Larrywaug Brook
Location500 N of Int W/ RTE 102
RouteState Highway 183
Coordinates42.30154, -73.33409
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length43 ft (13.1 m)
Longest span43 ft (13.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,621 (2018)
Projected traffic—
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was ST183 Interlakn RD over Water Larrywaug Brook built?

It was built in 2021, making it 4 years old in 2025.

What condition is ST183 Interlakn RD over Water Larrywaug Brook 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 December 2023.

How much traffic does ST183 Interlakn RD over Water Larrywaug Brook carry?

About 3,621 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is ST183 Interlakn RD over Water Larrywaug Brook?

The structure is 43 ft (13.1 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.

Who owns ST183 Interlakn RD over Water Larrywaug Brook?

It is owned by the Town or Township Highway Agency.