US Bridges

Harper RD over Big Hogles CR

FairPosted for load

Benton County, Missouri · S 6 T 39 N R 23 W · Structure no. 21006

Built
1977
48 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
192 ft
3 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Harper RD over Big Hogles CR is a concrete tee beam carrying Harper RD over Big Hogles CR in Benton County, Missouri. It was built in 1977, so it is 48 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2043. The structure is 192 ft (58.5 m) long and 27 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesHarper RD
CrossesBig Hogles CR
LocationS 6 T 39 N R 23 W
RouteCounty Highway 285
CountyBenton County
StateMissouri
Coordinates38.16705, -93.49355
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17.9 US tons
Inventory rating8.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length192 ft (58.5 m)
Longest span76 ft (23.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic29 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$853,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Harper RD over Big Hogles CR built?

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

What condition is Harper RD over Big Hogles 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 January 2024.

How much traffic does Harper RD over Big Hogles CR carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Harper RD over Big Hogles CR?

The structure is 192 ft (58.5 m) long with a longest span of 76 ft (23.2 m) and a deck 27 ft wide.

Who owns Harper RD over Big Hogles CR?

It is owned by the County Highway Agency.