US Bridges

Preston CO Rt 29 over Boyd Run

PoorPosted for load

Preston County, West Virginia · 0.04 MI West CO Rt 29/2 · Structure no. 00000000039A070

Built
1937
88 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
4,100
2019 count
Owner
State
State Highway Agency

About this bridge

Preston CO Rt 29 over Boyd Run is a concrete slab carrying Preston CO Rt 29 over Boyd Run in Preston County, West Virginia. It was built in 1937, so it is 88 years old, older than the West Virginia average of 44.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 4,100 vehicles a day, roughly 7% of them trucks, projected to reach 5,780 by 2041. The structure is 28 ft (8.5 m) long and 25 ft wide.

Location

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CarriesPreston CO Rt 29
CrossesBoyd Run
Location0.04 MI West CO Rt 29/2
RouteCounty Highway 2900
CountyPreston County
StateWest Virginia
Coordinates39.47817, -79.86605
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating20.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2019)
Projected traffic5,780 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$571,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Preston CO Rt 29 over Boyd Run built?

It was built in 1937, making it 88 years old in 2025.

What condition is Preston CO Rt 29 over Boyd Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Preston CO Rt 29 over Boyd Run carry?

About 4,100 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Preston CO Rt 29 over Boyd Run?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns Preston CO Rt 29 over Boyd Run?

It is owned by the State Highway Agency.