US Bridges

Huntoon RD S over Is 229

FairPosted for load

Buchanan County, Missouri · S 31 T 57 N R 35 W · Structure no. 954

Built
1983
42 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
2 main spans
Daily traffic
124
2024 count
Owner
State
State Highway Agency

About this bridge

Huntoon RD S over Is 229 is a steel continuous stringer/multi-beam or girder carrying Huntoon RD S over Is 229 in Buchanan County, Missouri. It was built in 1983, so it is 42 years old, younger 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 124 vehicles a day, roughly 5% of them trucks, projected to reach 161 by 2044. The structure is 280 ft (85.3 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesHuntoon RD S
CrossesIs 229
LocationS 31 T 57 N R 35 W
RouteCity Street 0
CountyBuchanan County
StateMissouri
Coordinates39.80079, -94.86857
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length280 ft (85.3 m)
Longest span114 ft (34.7 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124 (2024)
Projected traffic161 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Huntoon RD S over Is 229 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Huntoon RD S over Is 229 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 August 2024.

How much traffic does Huntoon RD S over Is 229 carry?

About 124 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Huntoon RD S over Is 229?

The structure is 280 ft (85.3 m) long with a longest span of 114 ft (34.7 m) and a deck 30 ft wide.

Who owns Huntoon RD S over Is 229?

It is owned by the State Highway Agency.