US Bridges

Route 3 over Spillway Lake Vega

Fair

Madison County, Kentucky · Lake Vega Dam · Structure no. VB-002

Built
1977
48 years old, rebuilt 1988
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
103 ft
6 main spans
Daily traffic
30
2024 count
Owner
Federal
Army

About this bridge

Route 3 over Spillway Lake Vega is a prestressed concrete box beam or girders - multiple carrying Route 3 over Spillway Lake Vega in Madison County, Kentucky. It was built in 1977 and reconstructed in 1988, so it is 48 years old, older than the Kentucky average of 46.6 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 30 vehicles a day, roughly 40% of them trucks, projected to reach 30 by 2046. The structure is 103 ft (31.5 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 3
CrossesSpillway Lake Vega
LocationLake Vega Dam
Coordinates37.69987, -84.21701
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating68.6 US tons
Inventory rating52.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadUnknown
Structure length103 ft (31.5 m)
Longest span18 ft (5.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic30 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 3 over Spillway Lake Vega built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1988.

What condition is Route 3 over Spillway Lake Vega 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 July 2024.

How much traffic does Route 3 over Spillway Lake Vega carry?

About 30 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is Route 3 over Spillway Lake Vega?

The structure is 103 ft (31.5 m) long with a longest span of 18 ft (5.4 m) and a deck 24 ft wide.

Who owns Route 3 over Spillway Lake Vega?

It is owned by the Army.