US Bridges

HWY Adams ST over Water Monatiquot River

Good

Norfolk County, Massachusetts · Just S of Elm by Mobil · Structure no. B2100533AMUNNBI

Built
1886
139 years old, rebuilt 1998
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
6,200
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Adams ST over Water Monatiquot River is a prestressed concrete box beam or girders - single or spread carrying HWY Adams ST over Water Monatiquot River in Norfolk County, Massachusetts. It was built in 1886 and reconstructed in 1998, so it is 139 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,200 vehicles a day, roughly 8% of them trucks, projected to reach 18,320 by 2033. The structure is 39 ft (11.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Adams ST
CrossesWater Monatiquot River
LocationJust S of Elm by Mobil
RouteCity Street 0
Coordinates42.2247, -70.9953
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating93.1 US tons
Inventory rating55.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span33 ft (10.1 m)
Deck width41 ft (12.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2024)
Projected traffic18,320 by 2033
Trucks8%
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 statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1 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 1886, making it 139 years old in 2025. It was reconstructed in 1998.

What condition is HWY Adams ST over Water Monatiquot River 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 January 2024.

How much traffic does HWY Adams ST over Water Monatiquot River carry?

About 6,200 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is HWY Adams ST over Water Monatiquot River?

The structure is 39 ft (11.8 m) long with a longest span of 33 ft (10.1 m) and a deck 41 ft wide.

Who owns HWY Adams ST over Water Monatiquot River?

It is owned by the Town or Township Highway Agency.