US Bridges

SE 45th RD over Pettis CR

PoorPosted for load

Barton County, Missouri · S 14 T 31 N R 30 W · Structure no. 24573

Built
1982
43 years old
Condition
Poor
inspected March 2024
Type
Slab
Concrete Continuous
Length
51 ft
3 main spans
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

SE 45th RD over Pettis CR is a concrete continuous slab carrying SE 45th RD over Pettis CR in Barton County, Missouri. It was built in 1982, so it is 43 years old, younger 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 3 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2043. The structure is 51 ft (15.5 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSE 45th RD
CrossesPettis CR
LocationS 14 T 31 N R 30 W
RouteCounty Highway 512
Coordinates37.4323, -94.20059
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.9 US tons
Inventory rating9.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length51 ft (15.5 m)
Longest span17 ft (5.2 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic35 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$399,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SE 45th RD over Pettis CR built?

It was built in 1982, making it 43 years old in 2025.

What condition is SE 45th RD over Pettis 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 March 2024.

How much traffic does SE 45th RD over Pettis CR carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE 45th RD over Pettis CR?

The structure is 51 ft (15.5 m) long with a longest span of 17 ft (5.2 m) and a deck 22 ft wide.

Who owns SE 45th RD over Pettis CR?

It is owned by the County Highway Agency.