US Bridges

Jefferson Notch RD over S Branch Israel River

Fair

Coos County, New Hampshire · 1.7 MI S Jefferson Tl · Structure no. 015551080025500

Built
1934
91 years old, rebuilt 1994
Condition
Fair
inspected July 2024
Type
Slab
Wood or Timber
Length
27 ft
1 main span
Daily traffic
96
2023 count
Owner
State
State Highway Agency

About this bridge

Jefferson Notch RD over S Branch Israel River is a wood or timber slab carrying Jefferson Notch RD over S Branch Israel River in Coos County, New Hampshire. It was built in 1934 and reconstructed in 1994, so it is 91 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 5 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 96 vehicles a day, projected to reach 142 by 2043. The structure is 27 ft (8.2 m) long and 22 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesJefferson Notch RD
CrossesS Branch Israel River
Location1.7 MI S Jefferson Tl
RouteState Highway 0
CountyCoos County
StateNew Hampshire
Coordinates44.31862, -71.36713
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span20 ft (6.2 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
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 Jefferson Notch RD over S Branch Israel River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1994.

What condition is Jefferson Notch RD over S Branch Israel River 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 July 2024.

How much traffic does Jefferson Notch RD over S Branch Israel River carry?

About 96 vehicles per day (2023 count).

How long is Jefferson Notch RD over S Branch Israel River?

The structure is 27 ft (8.2 m) long with a longest span of 20 ft (6.2 m) and a deck 22 ft wide.

Who owns Jefferson Notch RD over S Branch Israel River?

It is owned by the State Highway Agency.