US Bridges

Mo 13 S over Polecat CR

Fair

Harrison County, Missouri · S 35 T 63 N R 28 W · Structure no. 5691

Built
1937
88 years old, rebuilt 2007
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
5 main spans
Daily traffic
1,981
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 13 S over Polecat CR is a steel stringer/multi-beam or girder carrying Mo 13 S over Polecat CR in Harrison County, Missouri. It was built in 1937 and reconstructed in 2007, so it is 88 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,981 vehicles a day, roughly 14% of them trucks, projected to reach 2,575 by 2044. The structure is 213 ft (64.9 m) long and 25 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesMo 13 S
CrossesPolecat CR
LocationS 35 T 63 N R 28 W
RouteState Highway 13
CountyHarrison County
StateMissouri
Coordinates40.22048, -94.02354
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length213 ft (64.9 m)
Longest span43 ft (13 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,981 (2024)
Projected traffic2,575 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 13 S over Polecat CR built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2007.

What condition is Mo 13 S over Polecat CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Mo 13 S over Polecat CR carry?

About 1,981 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 13 S over Polecat CR?

The structure is 213 ft (64.9 m) long with a longest span of 43 ft (13 m) and a deck 25 ft wide.

Who owns Mo 13 S over Polecat CR?

It is owned by the State Highway Agency.