US Bridges

Is 49 S over Mound Br

Fair

Bates County, Missouri · S 5 T 39 N R 31 W · Structure no. 2265

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
6,951
2024 count
Owner
State
State Highway Agency

About this bridge

Is 49 S over Mound Br is a steel continuous stringer/multi-beam or girder carrying Is 49 S over Mound Br in Bates County, Missouri. It was built in 1969, so it is 56 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 6,951 vehicles a day, roughly 36% of them trucks, projected to reach 12,164 by 2044. The structure is 180 ft (54.9 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 49 S
CrossesMound Br
LocationS 5 T 39 N R 31 W
RouteInterstate 49
CountyBates County
StateMissouri
Coordinates38.21678, -94.35109
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span74 ft (22.6 m)
Deck width49 ft (14.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,951 (2024)
Projected traffic12,164 by 2044
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 49 S over Mound Br built?

It was built in 1969, making it 56 years old in 2025.

What condition is Is 49 S over Mound Br 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 Is 49 S over Mound Br carry?

About 6,951 vehicles per day (2024 count), of which roughly 36% are trucks.

How long is Is 49 S over Mound Br?

The structure is 180 ft (54.9 m) long with a longest span of 74 ft (22.6 m) and a deck 49 ft wide.

Who owns Is 49 S over Mound Br?

It is owned by the State Highway Agency.