US Bridges

HWY Saw Mill LN over Water Mother Brook

Fair

Norfolk County, Massachusetts · 1.4 KM E of Rt 1 · Structure no. D05011ATPMUNNBI

Built
2002
23 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
18,491
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Saw Mill LN over Water Mother Brook is a prestressed concrete box beam or girders - multiple carrying HWY Saw Mill LN over Water Mother Brook in Norfolk County, Massachusetts. It was built in 2002, so it is 23 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 6 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 18,491 vehicles a day, roughly 2% of them trucks, projected to reach 44,220 by 2031. The structure is 104 ft (31.6 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Saw Mill LN
CrossesWater Mother Brook
Location1.4 KM E of Rt 1
RouteCity Street 0
Coordinates42.24798, -71.15291
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length104 ft (31.6 m)
Longest span100 ft (30.4 m)
Deck width60 ft (18.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,491 (2024)
Projected traffic44,220 by 2031
Trucks2%
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Saw Mill LN over Water Mother Brook built?

It was built in 2002, making it 23 years old in 2025.

What condition is HWY Saw Mill LN over Water Mother Brook 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 2024.

How much traffic does HWY Saw Mill LN over Water Mother Brook carry?

About 18,491 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is HWY Saw Mill LN over Water Mother Brook?

The structure is 104 ft (31.6 m) long with a longest span of 100 ft (30.4 m) and a deck 60 ft wide.

Who owns HWY Saw Mill LN over Water Mother Brook?

It is owned by the Town or Township Highway Agency.