US Bridges

Dobyns Rd. / 631 over Poorhouse Creek

Good

Patrick County, Virginia · 0.00 Rt T1001;0.85 Rt 787 · Structure no. 000000000013280

Built
1971
54 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
1 main span
Daily traffic
1,392
2022 count
Owner
State
State Highway Agency

About this bridge

Dobyns Rd. / 631 over Poorhouse Creek is a steel stringer/multi-beam or girder carrying Dobyns Rd. / 631 over Poorhouse Creek in Patrick County, Virginia. It was built in 1971, so it is 54 years old, older than the Virginia average of 50.7 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 1,392 vehicles a day, projected to reach 1,552 by 2042. The structure is 122 ft (37.2 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesDobyns Rd. / 631
CrossesPoorhouse Creek
Location0.00 Rt T1001;0.85 Rt 787
RouteCounty Highway 631
CountyPatrick County
StateVirginia
Coordinates36.63724, -80.28086
Functional classRural Minor Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating75.9 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length122 ft (37.2 m)
Longest span122 ft (37.2 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,392 (2022)
Projected traffic1,552 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dobyns Rd. / 631 over Poorhouse Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Dobyns Rd. / 631 over Poorhouse Creek 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 January 2024.

How much traffic does Dobyns Rd. / 631 over Poorhouse Creek carry?

About 1,392 vehicles per day (2022 count).

How long is Dobyns Rd. / 631 over Poorhouse Creek?

The structure is 122 ft (37.2 m) long with a longest span of 122 ft (37.2 m) and a deck 34 ft wide.

Who owns Dobyns Rd. / 631 over Poorhouse Creek?

It is owned by the State Highway Agency.