US Bridges

Jewett Road over I-89

Fair

Merrimack County, New Hampshire · 1.8 MI E JCT 202 · Structure no. 012901480007000

Built
1959
66 years old, rebuilt 1992
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
5 main spans
Daily traffic
1,716
2023 count
Owner
State
State Highway Agency

About this bridge

Jewett Road over I-89 is a steel continuous stringer/multi-beam or girder carrying Jewett Road over I-89 in Merrimack County, New Hampshire. It was built in 1959 and reconstructed in 1992, so it is 66 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 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 1,716 vehicles a day, roughly 10% of them trucks, projected to reach 2,539 by 2043. The structure is 272 ft (82.9 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesJewett Road
CrossesI-89
Location1.8 MI E JCT 202
RouteState Highway 0
CountyMerrimack County
StateNew Hampshire
Coordinates43.18336, -71.64947
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans5
Design loadHS 20 + Mod
Structure length272 ft (82.9 m)
Longest span70 ft (21.3 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,716 (2023)
Projected traffic2,539 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Jewett Road over I-89 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.

What condition is Jewett Road over I-89 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 May 2024.

How much traffic does Jewett Road over I-89 carry?

About 1,716 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Jewett Road over I-89?

The structure is 272 ft (82.9 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns Jewett Road over I-89?

It is owned by the State Highway Agency.