US Bridges

HWY Rannapo RD over Water Housatonic River

Fair

Berkshire County, Massachusetts · 0.8 MI W. of Ashley Falls · Structure no. S10001085MUNNBI

Built
1971
54 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
259
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Rannapo RD over Water Housatonic River is a prestressed concrete stringer/multi-beam or girder carrying HWY Rannapo RD over Water Housatonic River in Berkshire County, Massachusetts. It was built in 1971, so it is 54 years old, younger 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 259 vehicles a day, roughly 6% of them trucks, projected to reach 711 by 2031. The structure is 154 ft (46.9 m) long and 38 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesHWY Rannapo RD
CrossesWater Housatonic River
Location0.8 MI W. of Ashley Falls
RouteCity Street 0
Coordinates42.05861, -73.34872
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating51.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length154 ft (46.9 m)
Longest span75 ft (23 m)
Deck width38 ft (11.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic259 (2020)
Projected traffic711 by 2031
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$5.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Rannapo RD over Water Housatonic River built?

It was built in 1971, making it 54 years old in 2025.

What condition is HWY Rannapo RD over Water Housatonic 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 February 2024.

How much traffic does HWY Rannapo RD over Water Housatonic River carry?

About 259 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is HWY Rannapo RD over Water Housatonic River?

The structure is 154 ft (46.9 m) long with a longest span of 75 ft (23 m) and a deck 38 ft wide.

Who owns HWY Rannapo RD over Water Housatonic River?

It is owned by the Town or Township Highway Agency.