US Bridges

Millstone RD over Indian CR

FairPosted for load

Texas County, Missouri · S 19 T 30 N R 9 W · Structure no. 24547

Built
1929
96 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
75 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Millstone RD over Indian CR is a concrete tee beam carrying Millstone RD over Indian CR in Texas County, Missouri. It was built in 1929, so it is 96 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2044. The structure is 75 ft (22.9 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMillstone RD
CrossesIndian CR
LocationS 19 T 30 N R 9 W
RouteCounty Highway 508
CountyTexas County
StateMissouri
Coordinates37.2882, -91.9661
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.8 US tons
Inventory rating8.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length75 ft (22.9 m)
Longest span37 ft (11.3 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic60 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$566,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Millstone RD over Indian CR built?

It was built in 1929, making it 96 years old in 2025.

What condition is Millstone RD over Indian 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 November 2023.

How much traffic does Millstone RD over Indian CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Millstone RD over Indian CR?

The structure is 75 ft (22.9 m) long with a longest span of 37 ft (11.3 m) and a deck 23 ft wide.

Who owns Millstone RD over Indian CR?

It is owned by the County Highway Agency and maintained by the Town or Township Highway Agency.