US Bridges

Herky-Horine RD over Sandy CR

Fair

Jefferson County, Missouri · S 924 T 41 N R 6 E · Structure no. 23629

Built
1930
95 years old, rebuilt 1984
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
135 ft
2 main spans
Daily traffic
400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Herky-Horine RD over Sandy CR is a prestressed concrete box beam or girders - multiple carrying Herky-Horine RD over Sandy CR in Jefferson County, Missouri. It was built in 1930 and reconstructed in 1984, so it is 95 years old, older than the Missouri average of 45.1 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 680 by 2043. The structure is 135 ft (41.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHerky-Horine RD
CrossesSandy CR
LocationS 924 T 41 N R 6 E
RouteCounty Highway 206
CountyJefferson County
StateMissouri
Coordinates38.27026, -90.40538
Functional classUrban 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 rating30.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length135 ft (41.1 m)
Longest span66 ft (20.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic680 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Herky-Horine RD over Sandy CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1984.

What condition is Herky-Horine RD over Sandy CR 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 March 2023.

How much traffic does Herky-Horine RD over Sandy CR carry?

About 400 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Herky-Horine RD over Sandy CR?

The structure is 135 ft (41.1 m) long with a longest span of 66 ft (20.1 m) and a deck 28 ft wide.

Who owns Herky-Horine RD over Sandy CR?

It is owned by the City or Municipal Highway Agency.