US Bridges

Boom Bridge Road over Pawcatuck River

Good

New London County, Connecticut · .75 MI SW of Anthony RD · Structure no. 04744

Built
1968
57 years old, rebuilt 2021
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
1 main span
Daily traffic
102
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Boom Bridge Road over Pawcatuck River is a steel stringer/multi-beam or girder carrying Boom Bridge Road over Pawcatuck River in New London County, Connecticut. It was built in 1968 and reconstructed in 2021, so it is 57 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 102 vehicles a day, roughly 5% of them trucks, projected to reach 152 by 2043. The structure is 126 ft (38.3 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesBoom Bridge Road
CrossesPawcatuck River
Location.75 MI SW of Anthony RD
RouteCity Street 0
Coordinates41.41749, -71.82344
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length126 ft (38.3 m)
Longest span122 ft (37.2 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102 (2023)
Projected traffic152 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Boom Bridge Road over Pawcatuck River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2021.

What condition is Boom Bridge Road over Pawcatuck River 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 2023.

How much traffic does Boom Bridge Road over Pawcatuck River carry?

About 102 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Boom Bridge Road over Pawcatuck River?

The structure is 126 ft (38.3 m) long with a longest span of 122 ft (37.2 m) and a deck 28 ft wide.

Who owns Boom Bridge Road over Pawcatuck River?

It is owned by the Town or Township Highway Agency.