US Bridges

I-93 Fee Tpk SB over I-89 Turkey River Ped

Good

Merrimack County, New Hampshire · Bow Interchange · Structure no. 002701350015800

Built
2014
11 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
263 ft
2 main spans
Daily traffic
35,573
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-93 Fee Tpk SB over I-89 Turkey River Ped is a steel stringer/multi-beam or girder carrying I-93 Fee Tpk SB over I-89 Turkey River Ped in Merrimack County, New Hampshire. It was built in 2014, so it is 11 years old, younger 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 35,573 vehicles a day, roughly 2% of them trucks, projected to reach 52,648 by 2043. The structure is 263 ft (80.2 m) long and 63 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-93 Fee Tpk SB
CrossesI-89 Turkey River Ped
LocationBow Interchange
RouteInterstate 93
CountyMerrimack County
StateNew Hampshire
Coordinates43.17037, -71.5303
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.6 US tons
Inventory rating54.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length263 ft (80.2 m)
Longest span150 ft (45.7 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,573 (2023)
Projected traffic52,648 by 2043
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed9.9 mi (16 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
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 I-93 Fee Tpk SB over I-89 Turkey River Ped built?

It was built in 2014, making it 11 years old in 2025.

What condition is I-93 Fee Tpk SB over I-89 Turkey River Ped 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 April 2024.

How much traffic does I-93 Fee Tpk SB over I-89 Turkey River Ped carry?

About 35,573 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is I-93 Fee Tpk SB over I-89 Turkey River Ped?

The structure is 263 ft (80.2 m) long with a longest span of 150 ft (45.7 m) and a deck 63 ft wide.

Who owns I-93 Fee Tpk SB over I-89 Turkey River Ped?

It is owned by the State Toll Authority.