US Bridges

HWY Adams ST over Water Monatiquot River

Fair

Norfolk County, Massachusetts · Adjacent to Arnold Street · Structure no. B21006339MUNNBI

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
2,715
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Adams ST over Water Monatiquot River is a prestressed concrete slab carrying HWY Adams ST over Water Monatiquot River in Norfolk 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 2,715 vehicles a day, roughly 20% of them trucks, projected to reach 16,583 by 2031. The structure is 46 ft (14 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Adams ST
CrossesWater Monatiquot River
LocationAdjacent to Arnold Street
RouteCity Street 0
Coordinates42.22458, -70.99308
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,715 (2023)
Projected traffic16,583 by 2031
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$2.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Adams ST over Water Monatiquot River built?

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

What condition is HWY Adams ST over Water Monatiquot 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 HWY Adams ST over Water Monatiquot River carry?

About 2,715 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is HWY Adams ST over Water Monatiquot River?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 50 ft wide.

Who owns HWY Adams ST over Water Monatiquot River?

It is owned by the Town or Township Highway Agency.