US Bridges

KY-704 over Unnamed Stream

Good

Adair County, Kentucky · .85 MI S. JCT Ky 55 · Structure no. 001B00078N

Built
1940
85 years old, rebuilt 2019
Condition
Good
inspected July 2021
Type
Slab
Concrete
Length
53 ft
3 main spans
Daily traffic
1,174
2021 count
Owner
State
State Highway Agency

About this bridge

KY-704 over Unnamed Stream is a concrete slab carrying KY-704 over Unnamed Stream in Adair County, Kentucky. It was built in 1940 and reconstructed in 2019, so it is 85 years old, older than the Kentucky average of 46.6 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 1,174 vehicles a day, projected to reach 1,174 by 2041. The structure is 53 ft (16.2 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesKY-704
CrossesUnnamed Stream
Location.85 MI S. JCT Ky 55
RouteState Highway 704
CountyAdair County
StateKentucky
Coordinates37.06778, -85.30583
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating65.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length53 ft (16.2 m)
Longest span18 ft (5.4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,174 (2021)
Projected traffic1,174 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-704 over Unnamed Stream built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2019.

What condition is KY-704 over Unnamed Stream 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 2021.

How much traffic does KY-704 over Unnamed Stream carry?

About 1,174 vehicles per day (2021 count).

How long is KY-704 over Unnamed Stream?

The structure is 53 ft (16.2 m) long with a longest span of 18 ft (5.4 m) and a deck 26 ft wide.

Who owns KY-704 over Unnamed Stream?

It is owned by the State Highway Agency.