US Bridges

Tanner Bridge RD over Herbrandt CR

Fair

Cole County, Missouri · S 36 T 44 N R 12 W · Structure no. 14895

Built
1980
45 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
400
2024 count
Owner
County
County Highway Agency

About this bridge

Tanner Bridge RD over Herbrandt CR is a concrete culvert carrying Tanner Bridge RD over Herbrandt CR in Cole County, Missouri. It was built in 1980, so it is 45 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.

It carries about 400 vehicles a day, roughly 10% of them trucks, projected to reach 680 by 2044. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesTanner Bridge RD
CrossesHerbrandt CR
LocationS 36 T 44 N R 12 W
RouteCounty Highway 78
CountyCole County
StateMissouri
Coordinates38.51653, -92.19706
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadOther
Structure length32 ft (9.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic680 by 2044
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tanner Bridge RD over Herbrandt CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is Tanner Bridge RD over Herbrandt 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 October 2023.

How much traffic does Tanner Bridge RD over Herbrandt CR carry?

About 400 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Tanner Bridge RD over Herbrandt CR?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Tanner Bridge RD over Herbrandt CR?

It is owned by the County Highway Agency.