US Bridges

HWY Union ST EB over Water Monatiquot River

Fair

Norfolk County, Massachusetts · .32 Km. SW of Middle ST · Structure no. B21032AAMDOTNBI

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
52 ft
2 main spans
Daily traffic
16,000
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Union ST EB over Water Monatiquot River is a concrete continuous culvert carrying HWY Union ST EB over Water Monatiquot River in Norfolk County, Massachusetts. It was built in 1957, so it is 68 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 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 16,000 vehicles a day, roughly 3% of them trucks, projected to reach 31,112 by 2032. The structure is 52 ft (15.8 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Union ST EB
CrossesWater Monatiquot River
Location.32 Km. SW of Middle ST
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.21075, -70.99504
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating87.9 US tons
Inventory rating52.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length52 ft (15.8 m)
Longest span25 ft (7.6 m)
Deck width36 ft (11 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2023)
Projected traffic31,112 by 2032
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Union ST EB over Water Monatiquot River built?

It was built in 1957, making it 68 years old in 2025.

What condition is HWY Union ST EB over Water Monatiquot 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 August 2023.

How much traffic does HWY Union ST EB over Water Monatiquot River carry?

About 16,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is HWY Union ST EB over Water Monatiquot River?

The structure is 52 ft (15.8 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.

Who owns HWY Union ST EB over Water Monatiquot River?

It is owned by the State Highway Agency.