US Bridges

HWY Reservatn RD over Water Mother Brook

Good

Suffolk County, Massachusetts · .48 KM NW Hyde Park Ave · Structure no. B1618638LMUNNBI

Built
1898
127 years old, rebuilt 1996
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
6,466
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Reservatn RD over Water Mother Brook is a steel stringer/multi-beam or girder carrying HWY Reservatn RD over Water Mother Brook in Suffolk County, Massachusetts. It was built in 1898 and reconstructed in 1996, so it is 127 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 6,466 vehicles a day, roughly 4% of them trucks, projected to reach 3,948 by 2031. The structure is 71 ft (21.7 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY Reservatn RD
CrossesWater Mother Brook
Location.48 KM NW Hyde Park Ave
RouteCity Street 0
Coordinates42.25057, -71.12963
Functional classUrban Minor Arterial

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.4 US tons
Inventory rating35.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.7 m)
Longest span65 ft (19.9 m)
Deck width40 ft (12.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,466 (2024)
Projected traffic3,948 by 2031
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Reservatn RD over Water Mother Brook built?

It was built in 1898, making it 127 years old in 2025. It was reconstructed in 1996.

What condition is HWY Reservatn RD over Water Mother Brook 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 October 2024.

How much traffic does HWY Reservatn RD over Water Mother Brook carry?

About 6,466 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is HWY Reservatn RD over Water Mother Brook?

The structure is 71 ft (21.7 m) long with a longest span of 65 ft (19.9 m) and a deck 40 ft wide.

Who owns HWY Reservatn RD over Water Mother Brook?

It is owned by the City or Municipal Highway Agency.