US Bridges

Olean RD over Blythes CR

Poor

Miller County, Missouri · S 14 T 42 N R 15 W · Structure no. 12894

Built
1930
95 years old
Condition
Poor
inspected January 2025
Type
Tee Beam
Concrete
Length
46 ft
2 main spans
Daily traffic
55
2023 count
Owner
County
County Highway Agency

About this bridge

Olean RD over Blythes CR is a concrete tee beam carrying Olean RD over Blythes CR in Miller 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.

It carries about 55 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 46 ft (14 m) long and 14 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesOlean RD
CrossesBlythes CR
LocationS 14 T 42 N R 15 W
RouteCounty Highway 23
Coordinates38.40325, -92.53947
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
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length46 ft (14 m)
Longest span18 ft (5.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2023)
Projected traffic94 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$383,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Olean RD over Blythes CR built?

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

What condition is Olean RD over Blythes CR 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 January 2025.

How much traffic does Olean RD over Blythes CR carry?

About 55 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Olean RD over Blythes CR?

The structure is 46 ft (14 m) long with a longest span of 18 ft (5.5 m) and a deck 14 ft wide.

Who owns Olean RD over Blythes CR?

It is owned by the County Highway Agency.