US Bridges

Cedar Tree Lane over Glascock Br

Fair

Boone County, Missouri · S 26 T 46 N R 13 W · Structure no. 23553

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Cedar Tree Lane over Glascock Br is a prestressed concrete tee beam carrying Cedar Tree Lane over Glascock Br in Boone County, Missouri. It was built in 1980, so it is 45 years old, younger 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 95 by 2043. The structure is 51 ft (15.5 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCedar Tree Lane
CrossesGlascock Br
LocationS 26 T 46 N R 13 W
RouteCounty Highway 415
CountyBoone County
StateMissouri
Coordinates38.73483, -92.35689
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic95 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$272,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cedar Tree Lane over Glascock Br built?

It was built in 1980, making it 45 years old in 2025.

What condition is Cedar Tree Lane over Glascock 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 December 2024.

How much traffic does Cedar Tree Lane over Glascock Br carry?

About 50 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Cedar Tree Lane over Glascock Br?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns Cedar Tree Lane over Glascock Br?

It is owned by the County Highway Agency.