US Bridges

TR 179 Agg Surf Ro over Bay Creek

Fair

Pike County, Illinois · 0.5 Mile SW Newsalem · Structure no. 075320900000000

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
100
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 179 Agg Surf Ro over Bay Creek is a prestressed concrete box beam or girders - multiple carrying TR 179 Agg Surf Ro over Bay Creek in Pike County, Illinois. It was built in 1980, so it is 45 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 6 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 100 vehicles a day, roughly 14% of them trucks, projected to reach 116 by 2046. The structure is 58 ft (17.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 179 Agg Surf Ro
CrossesBay Creek
Location0.5 Mile SW Newsalem
RouteCounty Highway 0
Coordinates39.6928, -90.85654
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic116 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-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 179 Agg Surf Ro over Bay Creek built?

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

What condition is TR 179 Agg Surf Ro over Bay 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 April 2023.

How much traffic does TR 179 Agg Surf Ro over Bay Creek carry?

About 100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is TR 179 Agg Surf Ro over Bay Creek?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 28 ft wide.

Who owns TR 179 Agg Surf Ro over Bay Creek?

It is owned by the Town or Township Highway Agency.