US Bridges

Trenthill Dr. 666 over Smith River

Fair

Henry County, Virginia · 0.00 Rt 722; 0.20 Rt 740 · Structure no. 000000000010143

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
205 ft
3 main spans
Daily traffic
909
2022 count
Owner
State
State Highway Agency

About this bridge

Trenthill Dr. 666 over Smith River is a steel stringer/multi-beam or girder carrying Trenthill Dr. 666 over Smith River in Henry County, Virginia. It was built in 1957, so it is 68 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 909 vehicles a day, roughly 1% of them trucks, projected to reach 1,014 by 2045. The structure is 205 ft (62.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTrenthill Dr. 666
CrossesSmith River
Location0.00 Rt 722; 0.20 Rt 740
RouteCounty Highway 666
CountyHenry County
StateVirginia
Coordinates36.77062, -80.00116
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length205 ft (62.5 m)
Longest span68 ft (20.6 m)
Deck width34 ft (10.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic909 (2022)
Projected traffic1,014 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$105 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Trenthill Dr. 666 over Smith River built?

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

What condition is Trenthill Dr. 666 over Smith River 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 August 2023.

How much traffic does Trenthill Dr. 666 over Smith River carry?

About 909 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Trenthill Dr. 666 over Smith River?

The structure is 205 ft (62.5 m) long with a longest span of 68 ft (20.6 m) and a deck 34 ft wide.

Who owns Trenthill Dr. 666 over Smith River?

It is owned by the State Highway Agency.