US Bridges

US 18 over Bloody Run & Dme RR

Fair

Clayton County, Iowa · 1.3 Mi. W of Jct. Ia. 76 · Structure no. 000000000605890

Built
1988
37 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
470 ft
4 main spans
Daily traffic
4,140
2022 count
Owner
State
State Highway Agency

About this bridge

US 18 over Bloody Run & Dme RR is a steel continuous stringer/multi-beam or girder carrying US 18 over Bloody Run & Dme RR in Clayton County, Iowa. It was built in 1988, so it is 37 years old, younger than the Iowa average of 45.5 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 4,140 vehicles a day, roughly 14% of them trucks, projected to reach 4,140 by 2042. The structure is 470 ft (143.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 18
CrossesBloody Run & Dme RR
Location1.3 Mi. W of Jct. Ia. 76
RouteU.S. Route 18
CountyClayton County
StateIowa
Coordinates43.04018, -91.20602
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating84.2 US tons
Inventory rating54.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length470 ft (143.3 m)
Longest span145 ft (44.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,140 (2022)
Projected traffic4,140 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 18 over Bloody Run & Dme RR built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 18 over Bloody Run & Dme RR 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 June 2023.

How much traffic does US 18 over Bloody Run & Dme RR carry?

About 4,140 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US 18 over Bloody Run & Dme RR?

The structure is 470 ft (143.3 m) long with a longest span of 145 ft (44.2 m) and a deck 47 ft wide.

Who owns US 18 over Bloody Run & Dme RR?

It is owned by the State Highway Agency.