US Bridges

Rt Tt E over Crooked CR

Fair

Dent County, Missouri · S 4 T 35 N R 4 W · Structure no. 8499

Built
1956
69 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
21 ft
7 main spans
Daily traffic
64
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Tt E over Crooked CR is a steel culvert carrying Rt Tt E over Crooked CR in Dent County, Missouri. It was built in 1956, so it is 69 years old, older 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 5 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 64 vehicles a day, roughly 13% of them trucks, projected to reach 90 by 2044. The structure is 21 ft (6.4 m) long and 19 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRt Tt E
CrossesCrooked CR
LocationS 4 T 35 N R 4 W
RouteState Highway 0TT
CountyDent County
StateMissouri
Coordinates37.77576, -91.37099
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans7
Design loadOther
Structure length21 ft (6.4 m)
Longest span2 ft (0.6 m)
Deck width19 ft (5.8 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64 (2024)
Projected traffic90 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Tt E over Crooked CR built?

It was built in 1956, making it 69 years old in 2025.

What condition is Rt Tt E over Crooked 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 February 2024.

How much traffic does Rt Tt E over Crooked CR carry?

About 64 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Rt Tt E over Crooked CR?

The structure is 21 ft (6.4 m) long with a longest span of 2 ft (0.6 m) and a deck 19 ft wide.

Who owns Rt Tt E over Crooked CR?

It is owned by the State Highway Agency.