US Bridges

Old Nh 9 over Beards Brook

Fair

Hillsborough County, New Hampshire · 0.3MI JCT 9-31-202 · Structure no. 012201110004200

Built
1951
74 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
78 ft
1 main span
Daily traffic
3,043
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Nh 9 over Beards Brook is a steel stringer/multi-beam or girder carrying Old Nh 9 over Beards Brook in Hillsborough County, New Hampshire. It was built in 1951 and reconstructed in 2004, so it is 74 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 3,043 vehicles a day, roughly 7% of them trucks, projected to reach 4,503 by 2043. The structure is 78 ft (23.8 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOld Nh 9
CrossesBeards Brook
Location0.3MI JCT 9-31-202
RouteState Highway 9
CountyHillsborough County
StateNew Hampshire
Coordinates43.11312, -71.92525
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.8 US tons
Inventory rating29.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length78 ft (23.8 m)
Longest span68 ft (20.7 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,043 (2023)
Projected traffic4,503 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Old Nh 9 over Beards Brook built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2004.

What condition is Old Nh 9 over Beards 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 October 2024.

How much traffic does Old Nh 9 over Beards Brook carry?

About 3,043 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Old Nh 9 over Beards Brook?

The structure is 78 ft (23.8 m) long with a longest span of 68 ft (20.7 m) and a deck 34 ft wide.

Who owns Old Nh 9 over Beards Brook?

It is owned by the City or Municipal Highway Agency.