US Bridges

SE 45th RD over Trib N Fk Spring R

PoorPosted for load

Barton County, Missouri · S 14 T 31 N R 29 W · Structure no. 23583

Built
1910
115 years old
Condition
Poor
inspected March 2023
Type
Truss - Thru
Steel Continuous
Length
71 ft
2 main spans
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

SE 45th RD over Trib N Fk Spring R is a steel continuous truss - thru carrying SE 45th RD over Trib N Fk Spring R in Barton County, Missouri. It was built in 1910, so it is 115 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 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 14 by 2043. The structure is 71 ft (21.6 m) long and 12 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSE 45th RD
CrossesTrib N Fk Spring R
LocationS 14 T 31 N R 29 W
RouteCounty Highway 417
CountyBarton County
StateMissouri
Coordinates37.42937, -94.09028
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating4 US tons
Inventory rating3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length71 ft (21.6 m)
Longest span40 ft (12.2 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic14 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$544,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SE 45th RD over Trib N Fk Spring R built?

It was built in 1910, making it 115 years old in 2025.

What condition is SE 45th RD over Trib N Fk Spring R 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 2023.

How much traffic does SE 45th RD over Trib N Fk Spring R carry?

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

How long is SE 45th RD over Trib N Fk Spring R?

The structure is 71 ft (21.6 m) long with a longest span of 40 ft (12.2 m) and a deck 12 ft wide.

Who owns SE 45th RD over Trib N Fk Spring R?

It is owned by the County Highway Agency.