US Bridges

I-93 Parkway over Bike Path Lafayette Bk

Fair

Grafton County, New Hampshire · 3.3 MI N. Lincoln Tl · Structure no. 008701320008600

Built
1987
38 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
295 ft
2 main spans
Daily traffic
10,220
2023 count
Owner
State
State Highway Agency

About this bridge

I-93 Parkway over Bike Path Lafayette Bk is a steel continuous stringer/multi-beam or girder carrying I-93 Parkway over Bike Path Lafayette Bk in Grafton County, New Hampshire. It was built in 1987, so it is 38 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 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 10,220 vehicles a day, roughly 9% of them trucks, projected to reach 15,125 by 2043. The structure is 295 ft (89.9 m) long and 96 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesI-93 Parkway
CrossesBike Path Lafayette Bk
Location3.3 MI N. Lincoln Tl
RouteInterstate 93
CountyGrafton County
StateNew Hampshire
Coordinates44.1844, -71.68557
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating83.4 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length295 ft (89.9 m)
Longest span145 ft (44.2 m)
Deck width96 ft (29.3 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,220 (2023)
Projected traffic15,125 by 2043
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Parkway over Bike Path Lafayette Bk built?

It was built in 1987, making it 38 years old in 2025.

What condition is I-93 Parkway over Bike Path Lafayette Bk 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 August 2023.

How much traffic does I-93 Parkway over Bike Path Lafayette Bk carry?

About 10,220 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-93 Parkway over Bike Path Lafayette Bk?

The structure is 295 ft (89.9 m) long with a longest span of 145 ft (44.2 m) and a deck 96 ft wide.

Who owns I-93 Parkway over Bike Path Lafayette Bk?

It is owned by the State Highway Agency.