US Bridges

I-89 NB over NH114

Good

Sullivan County, New Hampshire · 0.6MI from Springfield Tl · Structure no. 010001400006800

Built
1967
58 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
9,480
2023 count
Owner
State
State Highway Agency

About this bridge

I-89 NB over NH114 is a prestressed concrete stringer/multi-beam or girder carrying I-89 NB over NH114 in Sullivan County, New Hampshire. It was built in 1967, so it is 58 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 9,480 vehicles a day, roughly 9% of them trucks, projected to reach 14,030 by 2043. The structure is 61 ft (18.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-89 NB
CrossesNH114
Location0.6MI from Springfield Tl
RouteInterstate 89
Coordinates43.49081, -72.1102
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length61 ft (18.6 m)
Longest span56 ft (17.1 m)
Deck width44 ft (13.5 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,480 (2023)
Projected traffic14,030 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-89 NB over NH114 built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-89 NB over NH114 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 I-89 NB over NH114 carry?

About 9,480 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-89 NB over NH114?

The structure is 61 ft (18.6 m) long with a longest span of 56 ft (17.1 m) and a deck 44 ft wide.

Who owns I-89 NB over NH114?

It is owned by the State Highway Agency.