US Bridges

HWY Danforth ST over Water Mill River

Fair

Bristol County, Massachusetts · .75 MI NE of RTE 140 · Structure no. T010173K5MUNNBI

Built
1850
175 years old, rebuilt 1969
Condition
Fair
inspected November 2024
Type
Slab
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
6,833
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Danforth ST over Water Mill River is a prestressed concrete slab carrying HWY Danforth ST over Water Mill River in Bristol County, Massachusetts. It was built in 1850 and reconstructed in 1969, so it is 175 years old, older 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 6,833 vehicles a day, roughly 6% of them trucks, projected to reach 7,896 by 2031. The structure is 44 ft (13.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Danforth ST
CrossesWater Mill River
Location.75 MI NE of RTE 140
RouteCity Street 0
Coordinates41.91679, -71.10078
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating78.7 US tons
Inventory rating53.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length44 ft (13.4 m)
Longest span43 ft (13.1 m)
Deck width36 ft (11 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,833 (2024)
Projected traffic7,896 by 2031
Trucks6%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Danforth ST over Water Mill River built?

It was built in 1850, making it 175 years old in 2025. It was reconstructed in 1969.

What condition is HWY Danforth ST over Water Mill 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 November 2024.

How much traffic does HWY Danforth ST over Water Mill River carry?

About 6,833 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is HWY Danforth ST over Water Mill River?

The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13.1 m) and a deck 36 ft wide.

Who owns HWY Danforth ST over Water Mill River?

It is owned by the City or Municipal Highway Agency.