US Bridges

Baker Mill RD over Tyndall Branch

Good

Sussex County, Delaware · East of Seaford · Structure no. 3247 483

Built
1985
40 years old
Condition
Good
inspected June 2023
Type
Slab
Wood or Timber
Length
24 ft
1 main span
Daily traffic
213
2022 count
Owner
State
State Highway Agency

About this bridge

Baker Mill RD over Tyndall Branch is a wood or timber slab carrying Baker Mill RD over Tyndall Branch in Sussex County, Delaware. It was built in 1985, so it is 40 years old, younger than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 213 vehicles a day, roughly 17% of them trucks, projected to reach 469 by 2042. The structure is 24 ft (7.4 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBaker Mill RD
CrossesTyndall Branch
LocationEast of Seaford
RouteCounty Highway 483
Coordinates38.63203, -75.49123
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating45.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span22 ft (6.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic213 (2022)
Projected traffic469 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Baker Mill RD over Tyndall Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is Baker Mill RD over Tyndall Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Baker Mill RD over Tyndall Branch carry?

About 213 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Baker Mill RD over Tyndall Branch?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns Baker Mill RD over Tyndall Branch?

It is owned by the State Highway Agency.