US Bridges

NH286 over Csx(abd)

Fair

Rockingham County, New Hampshire · At Mass S.L. · Structure no. 023401360005100

Built
1940
85 years old, rebuilt 1973
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
7,092
2023 count
Owner
State
State Highway Agency

About this bridge

NH286 over Csx(abd) is a steel stringer/multi-beam or girder carrying NH286 over Csx(abd) in Rockingham County, New Hampshire. It was built in 1940 and reconstructed in 1973, so it is 85 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 7,092 vehicles a day, roughly 4% of them trucks, projected to reach 10,496 by 2043. The structure is 44 ft (13.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNH286
CrossesCsx(abd)
LocationAt Mass S.L.
RouteState Highway 286
CountyRockingham County
StateNew Hampshire
Coordinates42.87019, -70.86373
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,092 (2023)
Projected traffic10,496 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NH286 over Csx(abd) built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1973.

What condition is NH286 over Csx(abd) 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 June 2024.

How much traffic does NH286 over Csx(abd) carry?

About 7,092 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH286 over Csx(abd)?

The structure is 44 ft (13.4 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns NH286 over Csx(abd)?

It is owned by the State Highway Agency.