US Bridges

Seals RD over Trib to Lit Gravoi

Good

Morgan County, Missouri · S 28 T 42 N R 17 W · Structure no. 21145

Built
1996
29 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
145 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Seals RD over Trib to Lit Gravoi is a steel stringer/multi-beam or girder carrying Seals RD over Trib to Lit Gravoi in Morgan County, Missouri. It was built in 1996, so it is 29 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 180 by 2043. The structure is 145 ft (44.2 m) long and 22 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSeals RD
CrossesTrib to Lit Gravoi
LocationS 28 T 42 N R 17 W
RouteCounty Highway 291
Coordinates38.37939, -92.80739
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.4 US tons
Inventory rating50.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length145 ft (44.2 m)
Longest span65 ft (19.8 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic180 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Seals RD over Trib to Lit Gravoi built?

It was built in 1996, making it 29 years old in 2025.

What condition is Seals RD over Trib to Lit Gravoi 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 2024.

How much traffic does Seals RD over Trib to Lit Gravoi carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Seals RD over Trib to Lit Gravoi?

The structure is 145 ft (44.2 m) long with a longest span of 65 ft (19.8 m) and a deck 22 ft wide.

Who owns Seals RD over Trib to Lit Gravoi?

It is owned by the County Highway Agency.