US Bridges

Simsbury Road over West Branch Salmon Brook

Fair

Hartford County, Connecticut · 0.2 MI No. of Firetown RD · Structure no. 04525

Built
1956
69 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
111 ft
2 main spans
Daily traffic
1,480
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Simsbury Road over West Branch Salmon Brook is a prestressed concrete stringer/multi-beam or girder carrying Simsbury Road over West Branch Salmon Brook in Hartford County, Connecticut. It was built in 1956, so it is 69 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 1,480 vehicles a day, roughly 2% of them trucks, projected to reach 2,199 by 2043. The structure is 111 ft (33.8 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSimsbury Road
CrossesWest Branch Salmon Brook
Location0.2 MI No. of Firetown RD
RouteCity Street 0
Coordinates41.94115, -72.83431
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating19.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span51 ft (15.5 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,480 (2023)
Projected traffic2,199 by 2043
Trucks2%
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$2.5 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Simsbury Road over West Branch Salmon Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is Simsbury Road over West Branch Salmon Brook 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 November 2023.

How much traffic does Simsbury Road over West Branch Salmon Brook carry?

About 1,480 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Simsbury Road over West Branch Salmon Brook?

The structure is 111 ft (33.8 m) long with a longest span of 51 ft (15.5 m) and a deck 26 ft wide.

Who owns Simsbury Road over West Branch Salmon Brook?

It is owned by the Town or Township Highway Agency.