US Bridges

Joshuatown Road over Eight Mile River

Fair

New London County, Connecticut · 0.2 MI W of Route 156 · Structure no. 04724

Built
1936
89 years old, rebuilt 2016
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
82 ft
3 main spans
Daily traffic
450
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Joshuatown Road over Eight Mile River is a concrete arch - deck carrying Joshuatown Road over Eight Mile River in New London County, Connecticut. It was built in 1936 and reconstructed in 2016, so it is 89 years old, older than the Connecticut average of 56.7 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 450 vehicles a day, roughly 7% of them trucks, projected to reach 669 by 2041. The structure is 82 ft (25 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJoshuatown Road
CrossesEight Mile River
Location0.2 MI W of Route 156
RouteCity Street 0
Coordinates41.39447, -72.35068
Functional classRural Minor 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
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating87.2 US tons
Inventory rating67.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2021)
Projected traffic669 by 2041
Trucks7%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Joshuatown Road over Eight Mile River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2016.

What condition is Joshuatown Road over Eight Mile River 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 September 2024.

How much traffic does Joshuatown Road over Eight Mile River carry?

About 450 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Joshuatown Road over Eight Mile River?

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns Joshuatown Road over Eight Mile River?

It is owned by the Town or Township Highway Agency.