US Bridges

Route 181 over W Br Farmington River

Fair

Litchfield County, Connecticut · Route 181 & 318 · Structure no. 01496

Built
1939
86 years old, rebuilt 1986
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
239 ft
1 main span
Daily traffic
6,600
2021 count
Owner
State
State Highway Agency

About this bridge

Route 181 over W Br Farmington River is a steel truss - thru carrying Route 181 over W Br Farmington River in Litchfield County, Connecticut. It was built in 1939 and reconstructed in 1986, so it is 86 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 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 6,600 vehicles a day, roughly 6% of them trucks, projected to reach 9,807 by 2041. The structure is 239 ft (72.8 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesRoute 181
CrossesW Br Farmington River
LocationRoute 181 & 318
RouteState Highway 181
Coordinates41.91271, -72.98782
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckClosed grating
Main spans1
Design loadH 20
Structure length239 ft (72.8 m)
Longest span232 ft (70.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic6,600 (2021)
Projected traffic9,807 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Route 181 over W Br Farmington River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1986.

What condition is Route 181 over W Br Farmington 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 April 2023.

How much traffic does Route 181 over W Br Farmington River carry?

About 6,600 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Route 181 over W Br Farmington River?

The structure is 239 ft (72.8 m) long with a longest span of 232 ft (70.7 m) and a deck 32 ft wide.

Who owns Route 181 over W Br Farmington River?

It is owned by the State Highway Agency.