US Bridges

Ellsworth Hill RD over Connor Brook

Fair

Grafton County, New Hampshire · 3.6 MI Ellsworth Tl · Structure no. 003501150012600

Built
1934
91 years old, rebuilt 1985
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
961
2023 count
Owner
State
State Highway Agency

About this bridge

Ellsworth Hill RD over Connor Brook is a concrete slab carrying Ellsworth Hill RD over Connor Brook in Grafton County, New Hampshire. It was built in 1934 and reconstructed in 1985, 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 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 961 vehicles a day, roughly 10% of them trucks, projected to reach 1,422 by 2043. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesEllsworth Hill RD
CrossesConnor Brook
Location3.6 MI Ellsworth Tl
RouteState Highway 0
Coordinates43.84627, -71.66736
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic961 (2023)
Projected traffic1,422 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Ellsworth Hill RD over Connor Brook built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1985.

What condition is Ellsworth Hill RD over Connor Brook 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 2023.

How much traffic does Ellsworth Hill RD over Connor Brook carry?

About 961 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Ellsworth Hill RD over Connor Brook?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 28 ft wide.

Who owns Ellsworth Hill RD over Connor Brook?

It is owned by the State Highway Agency.