US Bridges

HWY Mill RD over Water Beaver Brook

Fair

Middlesex County, Massachusetts · .2 Mi. South of ST-110 · Structure no. L13012B1JMUNNBI

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
24 ft
1 main span
Daily traffic
750
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Mill RD over Water Beaver Brook is a concrete arch - deck carrying HWY Mill RD over Water Beaver Brook in Middlesex County, Massachusetts. It was built in 1950, so it is 75 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 750 vehicles a day, roughly 5% of them trucks, projected to reach 1,184 by 2031. The structure is 24 ft (7.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Mill RD
CrossesWater Beaver Brook
Location.2 Mi. South of ST-110
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.53539, -71.4947
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.2 US tons
Inventory rating46.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span24 ft (7.2 m)
Deck width30 ft (9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2024)
Projected traffic1,184 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$703,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Mill RD over Water Beaver Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is HWY Mill RD over Water Beaver 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 Mill RD over Water Beaver Brook carry?

About 750 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is HWY Mill RD over Water Beaver Brook?

The structure is 24 ft (7.2 m) long with a longest span of 24 ft (7.2 m) and a deck 30 ft wide.

Who owns HWY Mill RD over Water Beaver Brook?

It is owned by the Town or Township Highway Agency.