US Bridges

Mount Olive RD over Salt Fk

PoorClosed to traffic

Saline County, Missouri · S 3 T 49 N R 20 W · Structure no. 22387

Built
1915
110 years old, rebuilt 1998
Condition
Poor
inspected March 2022
Type
Truss - Thru
Steel
Length
101 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

Mount Olive RD over Salt Fk is a steel truss - thru carrying Mount Olive RD over Salt Fk in Saline County, Missouri. It was built in 1915 and reconstructed in 1998, so it is 110 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2044. The structure is 101 ft (30.8 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMount Olive RD
CrossesSalt Fk
LocationS 3 T 49 N R 20 W
RouteCounty Highway 353
Coordinates39.04943, -93.09551
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.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2022
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadOther
Structure length101 ft (30.8 m)
Longest span100 ft (30.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic28 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$710,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mount Olive RD over Salt Fk built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1998.

What condition is Mount Olive RD over Salt Fk 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 2022.

How much traffic does Mount Olive RD over Salt Fk carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mount Olive RD over Salt Fk?

The structure is 101 ft (30.8 m) long with a longest span of 100 ft (30.5 m) and a deck 14 ft wide.

Who owns Mount Olive RD over Salt Fk?

It is owned by the County Highway Agency.