US Bridges

Ivan RD over Smith Fork

PoorPosted for load

Morgan County, Missouri · S 36 T 44 N R 17 W · Structure no. 20315

Built
1930
95 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
55 ft
3 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Ivan RD over Smith Fork is a concrete slab carrying Ivan RD over Smith Fork in Morgan County, Missouri. It was built in 1930, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 36 by 2043. The structure is 55 ft (16.8 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIvan RD
CrossesSmith Fork
LocationS 36 T 44 N R 17 W
RouteCounty Highway 255
Coordinates38.522, -92.75042
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating7.9 US tons
Inventory rating3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length55 ft (16.8 m)
Longest span21 ft (6.4 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic36 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$438,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ivan RD over Smith Fork built?

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

What condition is Ivan RD over Smith Fork in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Ivan RD over Smith Fork carry?

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

How long is Ivan RD over Smith Fork?

The structure is 55 ft (16.8 m) long with a longest span of 21 ft (6.4 m) and a deck 21 ft wide.

Who owns Ivan RD over Smith Fork?

It is owned by the County Highway Agency.