US Bridges

TR 148 over Creek

Fair

Macoupin County, Illinois · 2 MI S 3.5 MI W Bunk · Structure no. 059310300000000

Built
1900
125 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
150
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 148 over Creek is a concrete slab carrying TR 148 over Creek in Macoupin County, Illinois. It was built in 1900, so it is 125 years old, older 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 150 vehicles a day, roughly 8% of them trucks, projected to reach 152 by 2046. The structure is 33 ft (10.1 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 148
CrossesCreek
Location2 MI S 3.5 MI W Bunk
RouteCounty Highway 0
CountyMacoupin County
StateIllinois
Coordinates39.00827, -90.02973
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width18 ft (5.5 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic152 by 2046
Trucks8%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 148 over Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is TR 148 over 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 January 2023.

How much traffic does TR 148 over Creek carry?

About 150 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is TR 148 over Creek?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 18 ft wide.

Who owns TR 148 over Creek?

It is owned by the Town or Township Highway Agency.