US Bridges

Tebbetts Road over Nh 16 SP Tpk

Good

Strafford County, New Hampshire · 1.7 MI from Dover Tl · Structure no. 022201760013300

Built
1957
68 years old, rebuilt 1992
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
168 ft
4 main spans
Daily traffic
4,661
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Tebbetts Road over Nh 16 SP Tpk is a steel continuous stringer/multi-beam or girder carrying Tebbetts Road over Nh 16 SP Tpk in Strafford County, New Hampshire. It was built in 1957 and reconstructed in 1992, so it is 68 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 4,661 vehicles a day, roughly 3% of them trucks, projected to reach 6,898 by 2043. The structure is 168 ft (51.2 m) long and 31 ft wide.

Location

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CarriesTebbetts Road
CrossesNh 16 SP Tpk
Location1.7 MI from Dover Tl
CountyStrafford County
StateNew Hampshire
Coordinates43.2686, -70.95716
Functional classUrban 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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span47 ft (14.3 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,661 (2023)
Projected traffic6,898 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Tebbetts Road over Nh 16 SP Tpk built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1992.

What condition is Tebbetts Road over Nh 16 SP Tpk 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 July 2023.

How much traffic does Tebbetts Road over Nh 16 SP Tpk carry?

About 4,661 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Tebbetts Road over Nh 16 SP Tpk?

The structure is 168 ft (51.2 m) long with a longest span of 47 ft (14.3 m) and a deck 31 ft wide.

Who owns Tebbetts Road over Nh 16 SP Tpk?

It is owned by the State Toll Authority.