US Bridges

Route 10 over West Branch Salmon Brook

Fair

Hartford County, Connecticut · 0.8 MI South of Route 20 · Structure no. 00654

Built
1935
90 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
10,000
2019 count
Owner
State
State Highway Agency

About this bridge

Route 10 over West Branch Salmon Brook is a steel stringer/multi-beam or girder carrying Route 10 over West Branch Salmon Brook in Hartford County, Connecticut. It was built in 1935, so it is 90 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 10,000 vehicles a day, roughly 6% of them trucks, projected to reach 14,859 by 2039. The structure is 59 ft (18 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRoute 10
CrossesWest Branch Salmon Brook
Location0.8 MI South of Route 20
RouteState Highway 10
Coordinates41.94129, -72.79277
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length59 ft (18 m)
Longest span53 ft (16.2 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2019)
Projected traffic14,859 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 10 over West Branch Salmon Brook built?

It was built in 1935, making it 90 years old in 2025.

What condition is Route 10 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 June 2024.

How much traffic does Route 10 over West Branch Salmon Brook carry?

About 10,000 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Route 10 over West Branch Salmon Brook?

The structure is 59 ft (18 m) long with a longest span of 53 ft (16.2 m) and a deck 35 ft wide.

Who owns Route 10 over West Branch Salmon Brook?

It is owned by the State Highway Agency.