US Bridges

TR 122 over Sevenmile Creek

Fair

Massac County, Illinois · 0.9 MI N of TR 115 · Structure no. 064309400000000

Built
1986
39 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
225
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 122 over Sevenmile Creek is a prestressed concrete box beam or girders - multiple carrying TR 122 over Sevenmile Creek in Massac County, Illinois. It was built in 1986, so it is 39 years old, younger than the Illinois average of 45.3 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 225 vehicles a day, roughly 16% of them trucks, projected to reach 227 by 2046. The structure is 52 ft (15.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 122
CrossesSevenmile Creek
Location0.9 MI N of TR 115
RouteCounty Highway 0
CountyMassac County
StateIllinois
Coordinates37.2025, -88.60747
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.3 US tons
Inventory rating41.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2020)
Projected traffic227 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 122 over Sevenmile Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is TR 122 over Sevenmile Creek 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 February 2024.

How much traffic does TR 122 over Sevenmile Creek carry?

About 225 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is TR 122 over Sevenmile Creek?

The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns TR 122 over Sevenmile Creek?

It is owned by the Town or Township Highway Agency.