US Bridges

US 1 SB Bts 36/PR over HWY Arlington & 5th ST

Fair

Suffolk County, Massachusetts · .2 MI NE of Tobin Br. · Structure no. C090073A6DOTNBI

Built
1957
68 years old, rebuilt 2021
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,253 ft
18 main spans
Daily traffic
48,700
2023 count
Owner
State
State Highway Agency

About this bridge

US 1 SB Bts 36/PR over HWY Arlington & 5th ST is a steel stringer/multi-beam or girder carrying US 1 SB Bts 36/PR over HWY Arlington & 5th ST in Suffolk County, Massachusetts. It was built in 1957 and reconstructed in 2021, 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 48,700 vehicles a day, roughly 6% of them trucks, projected to reach 45,800 by 2032. The structure is 1,253 ft (381.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 1 SB Bts 36/PR
CrossesHWY Arlington & 5th ST
Location.2 MI NE of Tobin Br.
RouteU.S. Route 1
CountySuffolk County
StateMassachusetts
Coordinates42.39442, -71.0353
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.4 US tons
Inventory rating35.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length1,253 ft (381.9 m)
Longest span84 ft (25.6 m)
Deck width47 ft (14.3 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,700 (2023)
Projected traffic45,800 by 2032
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 SB Bts 36/PR over HWY Arlington & 5th ST built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2021.

What condition is US 1 SB Bts 36/PR over HWY Arlington & 5th ST 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 June 2023.

How much traffic does US 1 SB Bts 36/PR over HWY Arlington & 5th ST carry?

About 48,700 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 1 SB Bts 36/PR over HWY Arlington & 5th ST?

The structure is 1,253 ft (381.9 m) long with a longest span of 84 ft (25.6 m) and a deck 47 ft wide.

Who owns US 1 SB Bts 36/PR over HWY Arlington & 5th ST?

It is owned by the State Highway Agency.