US Bridges

Route 163 over Oxoboxo Brook

Good

New London County, Connecticut · 1.6 Miles North of I-395 · Structure no. 06255

Built
1993
32 years old
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
5,600
2017 count
Owner
State
State Highway Agency

About this bridge

Route 163 over Oxoboxo Brook is a prestressed concrete stringer/multi-beam or girder carrying Route 163 over Oxoboxo Brook in New London County, Connecticut. It was built in 1993, so it is 32 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,600 vehicles a day, roughly 3% of them trucks, projected to reach 8,321 by 2037. The structure is 82 ft (25 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 163
CrossesOxoboxo Brook
Location1.6 Miles North of I-395
RouteState Highway 163
Coordinates41.45584, -72.14111
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating65 US tons
Inventory rating50.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span75 ft (22.9 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2017)
Projected traffic8,321 by 2037
Trucks3%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 163 over Oxoboxo Brook built?

It was built in 1993, making it 32 years old in 2025.

What condition is Route 163 over Oxoboxo Brook 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 April 2021.

How much traffic does Route 163 over Oxoboxo Brook carry?

About 5,600 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Route 163 over Oxoboxo Brook?

The structure is 82 ft (25 m) long with a longest span of 75 ft (22.9 m) and a deck 36 ft wide.

Who owns Route 163 over Oxoboxo Brook?

It is owned by the State Highway Agency.