US Bridges

SR 18 over Mud Creek

Fair

Benton County, Indiana · 00.73 E US 41 · Structure no. 004550

Built
1990
35 years old, rebuilt 2020
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
935
2019 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Mud Creek is a concrete continuous slab carrying SR 18 over Mud Creek in Benton County, Indiana. It was built in 1990 and reconstructed in 2020, so it is 35 years old, younger than the Indiana average of 46.6 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 935 vehicles a day, roughly 20% of them trucks, projected to reach 2,568 by 2032. The structure is 92 ft (28 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 18
CrossesMud Creek
Location00.73 E US 41
RouteState Highway 18
CountyBenton County
StateIndiana
Coordinates40.62229, -87.36736
Functional classRural Major 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
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span36 ft (10.9 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic935 (2019)
Projected traffic2,568 by 2032
Trucks20%
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

OwnerState Highway Agency
Maintained byState 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 SR 18 over Mud Creek built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2020.

What condition is SR 18 over Mud 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 2024.

How much traffic does SR 18 over Mud Creek carry?

About 935 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is SR 18 over Mud Creek?

The structure is 92 ft (28 m) long with a longest span of 36 ft (10.9 m) and a deck 44 ft wide.

Who owns SR 18 over Mud Creek?

It is owned by the State Highway Agency.