US Bridges

HWY Columbia RD over Comb Old Colny&mbta&red

Fair

Suffolk County, Massachusetts · 1.6 KM E of ST RTE 3 · Structure no. B161304ERDOTNBI

Built
1956
69 years old, rebuilt 1983
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
2 main spans
Daily traffic
82,500
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Columbia RD over Comb Old Colny&mbta&red is a steel stringer/multi-beam or girder carrying HWY Columbia RD over Comb Old Colny&mbta&red in Suffolk County, Massachusetts. It was built in 1956 and reconstructed in 1983, so it is 69 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 82,500 vehicles a day, roughly 3% of them trucks, projected to reach 112,130 by 2033. The structure is 213 ft (64.9 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Columbia RD
CrossesComb Old Colny&mbta&red
Location1.6 KM E of ST RTE 3
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.32141, -71.05251
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating66.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length213 ft (64.9 m)
Longest span120 ft (36.6 m)
Deck width72 ft (21.9 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82,500 (2024)
Projected traffic112,130 by 2033
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$13.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Columbia RD over Comb Old Colny&mbta&red built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1983.

What condition is HWY Columbia RD over Comb Old Colny&mbta&red 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 February 2024.

How much traffic does HWY Columbia RD over Comb Old Colny&mbta&red carry?

About 82,500 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is HWY Columbia RD over Comb Old Colny&mbta&red?

The structure is 213 ft (64.9 m) long with a longest span of 120 ft (36.6 m) and a deck 72 ft wide.

Who owns HWY Columbia RD over Comb Old Colny&mbta&red?

It is owned by the State Highway Agency.