US Bridges

US 5 (s End Br) over Comb AMTRAK & Conn Riv

Fair

Hampden County, Massachusetts · South End Bridge · Structure no. A050010W6DOTNBI

Built
1954
71 years old, rebuilt 2006
Condition
Fair
inspected October 2024
Type
Truss - Deck
Steel
Length
1,459 ft
7 main spans
Daily traffic
55,323
2023 count
Owner
State
State Highway Agency

About this bridge

US 5 (s End Br) over Comb AMTRAK & Conn Riv is a steel truss - deck carrying US 5 (s End Br) over Comb AMTRAK & Conn Riv in Hampden County, Massachusetts. It was built in 1954 and reconstructed in 2006, so it is 71 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 55,323 vehicles a day, roughly 10% of them trucks, projected to reach 79,913 by 2031. The structure is 1,459 ft (444.7 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 5 (s End Br)
CrossesComb AMTRAK & Conn Riv
LocationSouth End Bridge
RouteU.S. Route 5
Coordinates42.08142, -72.58315
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating59.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20
Structure length1,459 ft (444.7 m)
Longest span300 ft (91.4 m)
Deck width72 ft (21.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,323 (2023)
Projected traffic79,913 by 2031
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed1.9 mi (3 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$94.9 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 5 (s End Br) over Comb AMTRAK & Conn Riv built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2006.

What condition is US 5 (s End Br) over Comb AMTRAK & Conn Riv 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 US 5 (s End Br) over Comb AMTRAK & Conn Riv carry?

About 55,323 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 5 (s End Br) over Comb AMTRAK & Conn Riv?

The structure is 1,459 ft (444.7 m) long with a longest span of 300 ft (91.4 m) and a deck 72 ft wide.

Who owns US 5 (s End Br) over Comb AMTRAK & Conn Riv?

It is owned by the State Highway Agency.