US Bridges

SR 608 over Yantic River

Fair

New London County, Connecticut · 0.49 MI West of SR 612 · Structure no. 04172

Built
1934
91 years old, rebuilt 1978
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
3,200
2020 count
Owner
State
State Highway Agency

About this bridge

SR 608 over Yantic River is a prestressed concrete box beam or girders - multiple carrying SR 608 over Yantic River in New London County, Connecticut. It was built in 1934 and reconstructed in 1978, so it is 91 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 3,200 vehicles a day, roughly 5% of them trucks, projected to reach 4,755 by 2040. The structure is 89 ft (27.1 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 608
CrossesYantic River
Location0.49 MI West of SR 612
RouteState Highway 608
Coordinates41.56402, -72.15545
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating110.1 US tons
Inventory rating75.9 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length89 ft (27.1 m)
Longest span86 ft (26.2 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2020)
Projected traffic4,755 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 SR 608 over Yantic River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1978.

What condition is SR 608 over Yantic 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 January 2024.

How much traffic does SR 608 over Yantic River carry?

About 3,200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is SR 608 over Yantic River?

The structure is 89 ft (27.1 m) long with a longest span of 86 ft (26.2 m) and a deck 32 ft wide.

Who owns SR 608 over Yantic River?

It is owned by the State Highway Agency.