US Bridges

Fee Tpk over Souhegan River

Good

Hillsborough County, New Hampshire · 0.8 MI from Baboosic RD · Structure no. 016801110011500

Built
1953
72 years old, rebuilt 2011
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
229 ft
3 main spans
Daily traffic
75,081
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Fee Tpk over Souhegan River is a steel continuous stringer/multi-beam or girder carrying Fee Tpk over Souhegan River in Hillsborough County, New Hampshire. It was built in 1953 and reconstructed in 2011, so it is 72 years old, older than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75,081 vehicles a day, roughly 7% of them trucks, projected to reach 111,119 by 2043. The structure is 229 ft (69.8 m) long and 123 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFee Tpk
CrossesSouhegan River
Location0.8 MI from Baboosic RD
Coordinates42.85679, -71.49862
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.7 US tons
Inventory rating53.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length229 ft (69.8 m)
Longest span84 ft (25.6 m)
Deck width123 ft (37.5 m)
Roadway width117 ft (35.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75,081 (2023)
Projected traffic111,119 by 2043
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fee Tpk over Souhegan River built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2011.

What condition is Fee Tpk over Souhegan River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Fee Tpk over Souhegan River carry?

About 75,081 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Fee Tpk over Souhegan River?

The structure is 229 ft (69.8 m) long with a longest span of 84 ft (25.6 m) and a deck 123 ft wide.

Who owns Fee Tpk over Souhegan River?

It is owned by the State Toll Authority.