US Bridges

County RD 013 over BNSF RR

PoorClosed to traffic

Knox County, Missouri · S 33 T 63 N R 12 W · Structure no. 12550

Built
1930
95 years old, rebuilt 1999
Condition
Poor
inspected August 2023
Type
Truss - Thru
Steel
Length
126 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 013 over BNSF RR is a steel truss - thru carrying County RD 013 over BNSF RR in Knox County, Missouri. It was built in 1930 and reconstructed in 1999, so it is 95 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 2 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: closed to all traffic.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 25 by 2044. The structure is 126 ft (38.4 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty RD 013
CrossesBNSF RR
LocationS 33 T 63 N R 12 W
RouteCounty Highway 13
CountyKnox County
StateMissouri
Coordinates40.21878, -92.24272
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+5 approach)
Design loadOther
Structure length126 ft (38.4 m)
Longest span52 ft (15.8 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic25 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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$871,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was County RD 013 over BNSF RR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1999.

What condition is County RD 013 over BNSF RR 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 August 2023.

How much traffic does County RD 013 over BNSF RR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 013 over BNSF RR?

The structure is 126 ft (38.4 m) long with a longest span of 52 ft (15.8 m) and a deck 16 ft wide.

Who owns County RD 013 over BNSF RR?

It is owned by the County Highway Agency.