US Bridges

Island Pond Road over I-93 NB I-293 EB

Good

Hillsborough County, New Hampshire · .6 MI E Rt 28 a · Structure no. 016101660012500

Built
2009
16 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
1 main span
Daily traffic
3,640
2023 count
Owner
State
State Highway Agency

About this bridge

Island Pond Road over I-93 NB I-293 EB is a steel stringer/multi-beam or girder carrying Island Pond Road over I-93 NB I-293 EB in Hillsborough County, New Hampshire. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,640 vehicles a day, roughly 3% of them trucks, projected to reach 5,387 by 2043. The structure is 140 ft (42.7 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIsland Pond Road
CrossesI-93 NB I-293 EB
Location.6 MI E Rt 28 a
RouteCity Street 0
CountyHillsborough County
StateNew Hampshire
Coordinates42.96891, -71.41261
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating52.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length140 ft (42.7 m)
Longest span136 ft (41.5 m)
Deck width39 ft (11.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,640 (2023)
Projected traffic5,387 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Island Pond Road over I-93 NB I-293 EB built?

It was built in 2009, making it 16 years old in 2025.

What condition is Island Pond Road over I-93 NB I-293 EB 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 2023.

How much traffic does Island Pond Road over I-93 NB I-293 EB carry?

About 3,640 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Island Pond Road over I-93 NB I-293 EB?

The structure is 140 ft (42.7 m) long with a longest span of 136 ft (41.5 m) and a deck 39 ft wide.

Who owns Island Pond Road over I-93 NB I-293 EB?

It is owned by the State Highway Agency.