US Bridges

Crystal Ave over BNSF RR

PoorClosed to traffic

Macon County, Missouri · S 35 T 59 N R 17 W · Structure no. 22477

Built
1920
105 years old
Condition
Poor
inspected December 2021
Type
Truss - Thru
Steel
Length
237 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Crystal Ave over BNSF RR is a steel truss - thru carrying Crystal Ave over BNSF RR in Macon County, Missouri. It was built in 1920, so it is 105 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: closed to all traffic.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 237 ft (72.2 m) long and 15 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCrystal Ave
CrossesBNSF RR
LocationS 35 T 59 N R 17 W
RouteCounty Highway 358
CountyMacon County
StateMissouri
Coordinates39.87991, -92.76183
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2021
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+5 approach)
Design loadOther
Structure length237 ft (72.2 m)
Longest span171 ft (52 m)
Deck width15 ft (4.6 m)
Roadway width13 ft (4 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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$1.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Crystal Ave over BNSF RR built?

It was built in 1920, making it 105 years old in 2025.

What condition is Crystal Ave 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 December 2021.

How much traffic does Crystal Ave over BNSF RR carry?

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

How long is Crystal Ave over BNSF RR?

The structure is 237 ft (72.2 m) long with a longest span of 171 ft (52 m) and a deck 15 ft wide.

Who owns Crystal Ave over BNSF RR?

It is owned by the County Highway Agency.