US Bridges

Giles Road over CSX

Good

Rockingham County, New Hampshire · 1.06MI RTE 108 · Structure no. 007100920011400

Built
1920
105 years old, rebuilt 1992
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
38 ft
1 main span
Daily traffic
208
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Giles Road over CSX is a wood or timber stringer/multi-beam or girder carrying Giles Road over CSX in Rockingham County, New Hampshire. It was built in 1920 and reconstructed in 1992, so it is 105 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 208 vehicles a day, roughly 4% of them trucks, projected to reach 307 by 2043. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGiles Road
CrossesCSX
Location1.06MI RTE 108
Coordinates42.94731, -70.99053
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating39.4 US tons
Inventory rating28.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2023)
Projected traffic307 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Giles Road over CSX built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1992.

What condition is Giles Road over CSX in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Giles Road over CSX carry?

About 208 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Giles Road over CSX?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 25 ft wide.

Who owns Giles Road over CSX?

It is owned by the City or Municipal Highway Agency.