US Bridges

Rt Tt E over Hornsby Br

Poor

Johnson County, Missouri · S 22 T 45 N R 29 W · Structure no. 7912

Built
1955
70 years old
Condition
Poor
inspected December 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
345
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Tt E over Hornsby Br is a concrete continuous culvert carrying Rt Tt E over Hornsby Br in Johnson County, Missouri. It was built in 1955, so it is 70 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 345 vehicles a day, roughly 10% of them trucks, projected to reach 535 by 2044. The structure is 21 ft (6.3 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRt Tt E
CrossesHornsby Br
LocationS 22 T 45 N R 29 W
RouteState Highway 0TT
CountyJohnson County
StateMissouri
Coordinates38.69922, -94.1143
Functional classRural Major Collector

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic345 (2024)
Projected traffic535 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Tt E over Hornsby Br built?

It was built in 1955, making it 70 years old in 2025.

What condition is Rt Tt E over Hornsby Br 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 December 2024.

How much traffic does Rt Tt E over Hornsby Br carry?

About 345 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Tt E over Hornsby Br?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Rt Tt E over Hornsby Br?

It is owned by the State Highway Agency.