US Bridges

Mo 13 N over Rt T

Good

Polk County, Missouri · S 14 T 33 N R 23 W · Structure no. 29072

Built
2002
23 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
186 ft
3 main spans
Daily traffic
8,355
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 13 N over Rt T is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 13 N over Rt T in Polk County, Missouri. It was built in 2002, so it is 23 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,355 vehicles a day, roughly 8% of them trucks, projected to reach 14,621 by 2044. The structure is 186 ft (56.7 m) long and 40 ft wide.

CarriesMo 13 N
CrossesRt T
LocationS 14 T 33 N R 23 W
RouteState Highway 13
Coordinates37.59304, -93.43221
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109.1 US tons
Inventory rating65.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length186 ft (56.7 m)
Longest span84 ft (25.5 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,355 (2024)
Projected traffic14,621 by 2044
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 13 N over Rt T built?

It was built in 2002, making it 23 years old in 2025.

What condition is Mo 13 N over Rt T in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Mo 13 N over Rt T carry?

About 8,355 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Mo 13 N over Rt T?

The structure is 186 ft (56.7 m) long with a longest span of 84 ft (25.5 m) and a deck 40 ft wide.

Who owns Mo 13 N over Rt T?

It is owned by the State Highway Agency.