US Bridges

HWY Jw Mahar HWY over Water Monatiquot River

Poor

Norfolk County, Massachusetts · At Monatiquot River · Structure no. B2106733DMUNNBI

Built
1982
43 years old
Condition
Poor
inspected July 2023
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
23,700
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Jw Mahar HWY over Water Monatiquot River is a prestressed concrete slab carrying HWY Jw Mahar HWY over Water Monatiquot River in Norfolk County, Massachusetts. It was built in 1982, so it is 43 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 23,700 vehicles a day, roughly 2% of them trucks, projected to reach 41,536 by 2032. The structure is 51 ft (15.5 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Jw Mahar HWY
CrossesWater Monatiquot River
LocationAt Monatiquot River
RouteCity Street 0
Coordinates42.20318, -70.99816
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.5 US tons
Inventory rating24.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width69 ft (21 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,700 (2023)
Projected traffic41,536 by 2032
Trucks2%
Lanes on structure4
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Jw Mahar HWY over Water Monatiquot River built?

It was built in 1982, making it 43 years old in 2025.

What condition is HWY Jw Mahar HWY over Water Monatiquot River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does HWY Jw Mahar HWY over Water Monatiquot River carry?

About 23,700 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is HWY Jw Mahar HWY over Water Monatiquot River?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 69 ft wide.

Who owns HWY Jw Mahar HWY over Water Monatiquot River?

It is owned by the Town or Township Highway Agency.